SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K ------------------------ CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): July 25, 2000 VIACOM INC. - -------------------------------------------------------------------------------- (Exact name of registrant as specified in its charter) Delaware 1-9553 04-2949533 - -------------------------------------------------------------------------------- (State or other (Commission File Number) (I.R.S. Employer jurisdiction of Incorporation) Identification Number) 1515 Broadway, New York, New York 10036 - -------------------------------------------------------------------------------- (Address of principal executives offices) (Zip Code) Registrant's telephone number, including area code: (212) 258-6000 --------------

Item 5. OTHER EVENTS. On July 25, 2000, Viacom Inc. ("Viacom" or, the "Registrant") and Viacom International Inc. ("Viacom International") entered into an underwriting agreement (the "Underwriting Agreement", a copy of which is attached hereto as Exhibit 1.1) with Merrill Lynch, Pierce, Fenner & Smith Incorporated, Salomon Smith Barney Inc., Banc of America Securities LLC, Chase Securities Inc., Deutsche Bank Securities Inc., BNY Capital Markets, Inc. and FleetBoston Robertson Stephens Inc. (the "Underwriters"). On August 1, 2000, pursuant to the Underwriting Agreement, Viacom issued and sold and the Underwriters purchased $1,150,000,000 aggregate principal amount of Viacom's 7.70% Senior Notes due 2010 (the "Senior Notes") and $500,000,000 aggregate principal amount of Viacom's 7.875% Senior Debentures due 2030 (the "Senior Debentures" and, together with the Senior Notes, the "Senior Securities"), at initial public offering prices of 99.883% and 99.978% of the principal amounts of the Senior Notes and the Senior Debentures, respectively, which yielded aggregate proceeds to Viacom of $1,638,994,500, after payment of the underwriting discount, but before payment of expenses related to the offering. Forms of the Senior Notes and the Senior Debentures, including the guarantees endorsed thereon, are attached hereto as Exhibits 4.1 and 4.2, respectively. The Senior Securities were (i) registered under the Securities Act of 1933, as amended, pursuant to a Registration Statement on Form S-3 (Reg. No. 33-53485) and pursuant to a Registration Statement on Form S-3 (Reg. No. 333-42320) filed pursuant to Rule 462(b) under the Securities Act of 1933, as amended, and (ii) issued under an Indenture, dated as of May 15, 1995, as supplemented by the First Supplemental Indenture thereto, dated as of May 24, 1995, as supplemented and amended by the Second Supplemental Indenture and Amendment No. 1, dated as of December 15, 1995, as supplemented by the Third Supplemental Indenture, dated as of July 22, 1996 and as further supplemented by the Fourth Supplemental Indenture, dated as of August 1, 2000 (as so supplemented and amended, the "Indenture") among Viacom, Viacom International, as guarantor, and Citibank N.A., as successor to State Street Bank and Trust Company and The First National Bank of Boston, trustee (the "Trustee"). A copy of the Fourth Supplemental Indenture, dated as of August 1, 2000, is attached hereto as Exhibit 4.3. The Indenture, dated as of May 15, 1995, the First Supplemental Indenture, dated as of May 24, 1995, and the Second Supplemental Indenture and Amendment No. 1, dated as of December 15, 1995 are incorporated herein by reference from the Current Report on Form 8-K, filed by Registrant with the Securities and Exchange Commission on December 15, 1995. The Third Supplemental Indenture, dated as July 22, 1996 is incorporated herein by reference from the Current Report on Form 8-K, filed by Registrant with the Securities and Exchange Commission on August 1, 1996. Item 7. FINANCIAL STATEMENTS AND EXHIBITS. (c) The following exhibits are filed as part of this report on Form 8-K: 1.1 Underwriting Agreement, dated July 25, 2000, among Viacom Inc., Viacom International Inc., Merrill Lynch, Pierce, Fenner & Smith Incorporated, Salomon Smith

Barney Inc., Banc of America Securities LLC, Chase Securities Inc., Deutsche Bank Securities Inc., BNY Capital Markets, Inc. and FleetBoston Robertson Stephens Inc. 4.1 Form of 7.70% Senior Notes due 2010, including the form of guarantee endorsed thereon. 4.2 Form of 7.875% Senior Debentures due 2030, including the form of guarantee endorsed thereon. 4.3 Fourth Supplemental Indenture, dated as of August 1, 2000, among Viacom Inc., Viacom International Inc., as guarantor, and Citibank N.A., trustee.

SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. VIACOM INC. Date: August 2, 2000 By: /s/ Michael D. Fricklas -------------------------------- Name: Michael D. Fricklas Title: Executive Vice President, General Counsel and Secretary

EXHIBIT INDEX Exhibit No. Description - ----------- ----------- 1.1 Underwriting Agreement, dated July 25, 2000, among Viacom Inc., Viacom International Inc., Merrill Lynch, Pierce, Fenner & Smith Incorporated, Salomon Smith Barney Inc., Banc of America Securities LLC, Chase Securities Inc., Deutsche Bank Securities Inc., BNY Capital Markets, Inc. and FleetBoston Robertson Stephens Inc. 4.1 Form of 7.70% Senior Notes due 2010, including the form of guarantee endorsed thereon. 4.2 Form of 7.875% Senior Debentures due 2030, including the form of guarantee endorsed thereon. 4.3 Fourth Supplemental Indenture dated as of August 1, 2000 among Viacom Inc., Viacom International Inc., as guarantor, and Citibank N.A., trustee.

Exhibit 1.1 VIACOM INC. VIACOM INTERNATIONAL INC. 7.700% SENIOR NOTES DUE 2010 7.875% SENIOR DEBENTURES DUE 2030 UNDERWRITING AGREEMENT New York, New York July 25, 2000 Merrill Lynch, Pierce, Fenner & Smith Incorporated Salomon Smith Barney Inc. As Representatives of the several Underwriters c/o Salomon Smith Barney Inc. 388 Greenwich Street New York, New York 10013 Ladies and Gentlemen: Viacom Inc., a Delaware corporation (the "Company"), proposes to issue and sell, subject to the terms and conditions stated herein, to Merrill Lynch, Pierce, Fenner & Smith Incorporated ("Merrill Lynch"), Salomon Smith Barney Inc. ("Salomon Smith Barney"), and the other underwriters named in Schedule I hereto (the "Underwriters"), for whom Merrill Lynch and Salomon Smith Barney are acting as representatives (the "Representatives"), $1,150,000,000 aggregate principal amount of 7.700% Senior Notes due 2010 (the "Notes") and $500,000,000 aggregate principal amount of 7.875% Senior Debentures due 2030 (the "Debentures"), both guaranteed on an unsecured basis (the "Guarantee") by Viacom International Inc., a Delaware corporation (the "Guarantor"). The Notes and Debentures together with the Guarantee are referred to collectively as the "Securities". The Securities are to be issued under an indenture dated as of May 15, 1995 among the Company, the Guarantor and Citibank, N.A., as successor to State Street Bank and Trust Company, as successor to The First National Bank of Boston, as trustee (the "Trustee"), as supplemented by the First Supplemental Indenture thereto, dated as of May 24, 1995, the Second Supplemental Indenture and Amendment No. 1, dated as of December 15, 1995, the Third Supplemental Indenture, dated as of July 22, 1996, and the Fourth Supplemental Indenture to be dated as of August 1, 2000 (as so supplemented and amended, the "Indenture").

1. REPRESENTATIONS AND WARRANTIES. The Company and the Guarantor jointly and severally represent and warrant to the Underwriters, as of the date hereof and as of the Closing Time (as defined below), as follows: (a) The Company has filed with the Securities and Exchange Commission (the "Commission") a registration statement on Form S-3 (No. 33-53485) (the "Registration Statement") under the Securities Act of 1933, as amended (the "1933 Act"), in respect of, among other things, the Securities. The Company meets the requirements for use of Form S-3 under the 1933 Act. If the Company files a registration statement with the Commission pursuant to Rule 462(b) of the rules and regulations under the 1933 Act, then all references to the Registration Statement shall also be deemed to include that Rule 462(b) registration statement. The Registration Statement has been declared effective by the Commission, and the Indenture has been qualified under the Trust Indenture Act of 1939, as amended (the "1939 Act"). The prospectus included in the Registration Statement is hereinafter referred to as the "Base Prospectus." The Base Prospectus, as it is to be supplemented by a prospectus supplement specifically relating to the Securities pursuant to Rule 424 under the 1933 Act ("Rule 424") is hereinafter to referred to as the "Prospectus." The term "Registration Statement" and "Prospectus" shall be deemed to include all amendments to the date hereof and all documents incorporated by reference therein. Any reference herein to the terms "amend," "amendment" or "supplement" with respect to the Registration Statement, the Base Prospectus and the Prospectus shall be deemed to refer to and include the filing of any document under the Securities Exchange Act of 1934, as amended (the "1934 Act"), after the date of this Agreement, or the issue date of the Base Prospectus or the Prospectus, as the case may be, deemed to be incorporated therein by reference. The Registration Statement and the Indenture, at the time and date the Registration Statement was declared effective by the Commission, complied, in all material respects, with the applicable provisions of the 1933 Act and the 1939 Act, respectively, and the applicable rules and regulations of the Commission thereunder. The Registration Statement, at the time and date it was declared effective by the Commission, did not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading. The Prospectus, at the date it is filed with, or transmitted for filing to, the Commission pursuant to Rule 424 and at Closing Time, will comply, in all material respects, with the applicable provisions of the 1933 Act and will not contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; PROVIDED, HOWEVER, that the Company makes no representations or warranties as to (i) that part of the Registration Statement which shall constitute the Statement of Eligibility and Qualification (Form T-1) of the Trustee under the 1939 Act or (ii) the information contained in or omitted from the Registration Statement or the Prospectus or any amendment thereof or supplement thereto in reliance upon and in conformity with information furnished to the Company in writing by or on behalf of any Underwriter through the Representatives specifically for use in the Registration Statement or the Prospectus. (b) The documents incorporated or deemed to be incorporated by reference in the Registration Statement and the Prospectus, when they became effective or at the time they were -2-

or hereafter are filed with the Commission, complied and will comply, as the case may be, in all material respects with the requirements of the 1934 Act and the rules and regulations of the Commission thereunder (the "1934 Act Regulations"). (c) The accountants who certified the financial statements and any supporting schedules thereto included in the Registration Statement and the Prospectus are independent public accountants as required by the 1933 Act and the applicable rules and regulations of the Commission thereunder (the "1933 Act Regulations"). (d) The financial statements of the Company and CBS Corporation included in the Registration Statement and the Prospectus, together with the related schedules and notes, as well as those financial statements, schedules and notes of any other entity included therein, present fairly the financial position of the Company at the dates indicated, and the statement of operations, stockholders' equity and cash flows of the Company and CBS Corporation for the periods specified. Such financial statements have been prepared in conformity with generally accepted accounting principles ("GAAP") applied on a consistent basis throughout the periods involved. The supporting schedules, if any, included in the Registration Statement and the Prospectus present fairly in accordance with GAAP the information required to be stated therein. The capitalization table, the summary financial data for Viacom, the summary financial data for CBS, the summary unaudited pro forma financial data and the ratio of earnings to fixed charges included in the Prospectus present fairly the information shown therein and have been compiled on a basis consistent with that of the audited financial statements included in the Registration Statement and the Prospectus. In addition, any pro forma financial statements of the Company, CBS Corporation and their subsidiaries and the related notes thereto included in the Registration Statement and the Prospectus present fairly the information shown therein, have been prepared in accordance with the Commission's rules and guidelines with respect to pro forma financial statements and have been properly compiled on the bases described therein, and the assumptions used in the preparation thereof are reasonable and the adjustments used therein are appropriate to give effect to the transactions and circumstances referred to therein. (e) Since the respective dates as of which information is given in the Registration Statement and the Prospectus, except as otherwise stated therein, (A) there has been no material adverse change in the financial condition, results of operations or business affairs of the Company and its subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business (a "Material Adverse Effect"), and (B) there have been no material transactions entered into by the Company other than transactions contemplated by the Registration Statement and Prospectus or transactions arising in the ordinary course of business. (f) The Company and the Guarantor have been duly organized and are validly existing as corporations in good standing under the laws of the State of Delaware and have corporate power and authority to own, lease and operate their respective properties and to conduct their respective businesses as described in the Prospectus and to enter into and perform their respective obligations under, or as contemplated under, this Underwriting Agreement. The Company and the Guarantor are duly qualified as foreign corporations to transact business and are in good standing in each other jurisdiction in which such qualification is required, whether by -3-

reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or be in good standing would not result in a Material Adverse Effect. (g) Each "significant subsidiary" of the Company (as such term is defined in Rule 1-02 of Regulation S-X promulgated under the 1933 Act), if any, has been duly organized and is validly existing as a corporation in good standing under the laws of the jurisdiction of its incorporation, has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Prospectus and is duly qualified as a foreign corporation to transact business and is in good standing in each jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or be in good standing would not result in a Material Adverse Effect. (h) All of the outstanding shares of capital stock of the Guarantor have been duly authorized and validly issued, are fully paid and non-assessable, and are wholly owned by the Company, free and clear of any lien, adverse claim, security interest, equity or other encumbrance except as described in the Prospectus and except for such liens, adverse claims, security interests, equity or other encumbrances that are immaterial to the Company and its subsidiaries taken as a whole. (i) This Underwriting Agreement has been duly authorized, executed and delivered by the Company and the Guarantor. (j) The Securities have been duly authorized by the Company and the Guarantor, as the case may be, for issuance and sale pursuant to this Underwriting Agreement. The Securities, when issued and authenticated in the manner provided for in the Indenture and delivered against payment of the consideration therefor specified in this Underwriting Agreement, will have been duly executed, authenticated, issued and delivered and will constitute valid and legally binding obligations of the Company and the Guarantor, as the case may be, entitled to the benefits of the Indenture, enforceable against the Company and the Guarantor, as the case may be, in accordance with their terms, except as (i) the enforceability thereof may be limited by bankruptcy, insolvency (including, without limitation, all laws relating to fraudulent transfers), reorganization, moratorium or other similar laws affecting the enforcement of creditors' rights generally and (ii) rights of acceleration, if any, and the availability of equitable remedies may be limited by equitable principles of general applicability (regardless of whether considered in a proceeding in equity or at law). (k) The Indenture has been duly authorized, executed and delivered by the Company and the Guarantor and, upon such authorization, execution and delivery, will constitute a valid and binding agreement of the Company and the Guarantor, enforceable against the Company and the Guarantor in accordance with its terms, except as (i) the enforceability thereof may be limited by bankruptcy, insolvency (including, without limitation, all laws relating to fraudulent transfers), reorganization, moratorium or other similar laws affecting the enforcement of creditors' rights generally and (ii) rights of acceleration, if any, and the availability of equitable remedies may be limited by equitable principles of general applicability (regardless of whether considered in a proceeding in equity or at law). -4-

(l) The Securities conform in all material respects to the statements relating thereto contained in the Prospectus. (m) The issue and sale of the Securities and compliance by the Company and the Guarantor with all of the provisions of the Securities, the Indenture and this Underwriting Agreement and the consummation of the transactions contemplated herein and therein do not and will not, whether with or without the giving of notice or passage of time or both, conflict with or constitute a breach of, or default or Repayment Event (as defined below) under, any obligation, agreement, covenant or condition contained in any contract, indenture, mortgage, deed of trust, loan or credit agreement, note, lease or other agreement or instrument to which the Company, the Guarantor or any of their respective subsidiaries is a party or by which it or any of them may be bound, or to which any of the assets, properties or operations of the Company, the Guarantor or any of their respective subsidiaries is subject, nor will such action result in any violation of the provisions of the charter or by-laws of the Company, the Guarantor or any of their respective subsidiaries or any applicable law, statute, rule, regulation, judgment, order, writ or decree of any government, government instrumentality or court, domestic or foreign, having jurisdiction over the Company, the Guarantor or any of their respective subsidiaries or any of their assets, properties or operations, except, in any such case, for such conflicts, breaches or violations as would not result in a Material Adverse Effect. As used herein, a "Repayment Event" means any event or condition which gives the holder of any note, debenture or other evidence of indebtedness (or any person acting on such holder's behalf) the right to require the repurchase, redemption or repayment of all or a portion of such indebtedness by the Company, the Guarantor or any of their respective subsidiaries. (n) There is no action, suit, proceeding, inquiry or investigation before or brought by any court or governmental agency or body, domestic or foreign, now pending, or to the knowledge of the Company or the Guarantor threatened, against or affecting the Company, the Guarantor or any of their respective subsidiaries which is required to be disclosed in the Registration Statement and the Prospectus (other than as stated therein), or which would result in a Material Adverse Effect, or which would materially and adversely affect the consummation of the transactions contemplated under the Prospectus, this Underwriting Agreement or the Indenture or the performance by the Company or the Guarantor of their respective obligations hereunder and thereunder. (o) There are no contracts or documents which are required to be described in the Registration Statement, the Prospectus or the documents incorporated by reference therein or to be filed as exhibits thereto which have not been so described and filed as required. (p) No filing with, or authorization, approval, consent, license, order, registration, qualification or decree of, any court or governmental authority or agency, domestic or foreign, is necessary or required for the due authorization, execution and delivery by the Company or the Guarantor of this Underwriting Agreement or for the performance by the Company or the Guarantor of the transactions contemplated under the Prospectus, this Underwriting Agreement or the Indenture, except such as have been already made, obtained or rendered, as applicable, and as may be required under state securities or Blue Sky laws in connection with the purchase and distribution of the Securities by the Underwriters and except where the failure to obtain any such -5-

filing, authorization, approval, consent, license, order, registration, qualification or decree will not result in a Material Adverse Effect. (q) The Company is not, and upon the issuance and sale of the Securities as herein contemplated and the application of the net proceeds therefrom as described in the Prospectus will not be, an "investment company" within the meaning of the Investment Company Act of 1940, as amended (the "1940 Act"). 2. SALE AND DELIVERY TO UNDERWRITERS; CLOSING. (a) SECURITIES. Subject to the terms and conditions set forth herein, the Company agrees to issue and sell to each of the Underwriters, and each of the Underwriters agrees, severally and not jointly, to purchase from the Company, at a purchase price of 99.433% of the principal amount thereof in the case of the Notes and 99.103% of the principal amount thereof in the case of the Debentures, the principal amount of the Securities set forth opposite such Underwriter's name on Schedule I hereto. (b) PAYMENT. Payment of the purchase price for, and delivery of, the Securities shall be made at the offices of Salomon Smith Barney, 388 Greenwich Street, New York, New York 10013, or at such other place as shall be agreed upon by the Representatives and the Company, at 9:00 A.M. (Eastern time) on August 1, 2000, or such other time not later than ten business days after such date as shall be agreed upon by the Representatives and the Company (such time and date of payment and delivery being herein called the "Closing Time"). Payment shall be made to the Company by wire transfer of immediately available funds to a bank account designated by the Company, against delivery to the Representatives for the respective accounts of the Underwriters of the Securities to be purchased by them. It is understood that each Underwriter has authorized the Representatives, for its account, to accept delivery of, receipt for, and make payment of the purchase price for, the Securities which it has severally agreed to purchase. The Representatives, individually and not as representatives of the Underwriters, may (but shall not be obligated to) make payment of the purchase price for the Securities to be purchased by any Underwriter whose funds have not been received by the Closing Time but such payment shall not relieve such Underwriter from its obligations hereunder. Delivery of the Securities shall be made through the facilities of the Depository Trust Company, Clearstream Luxembourg or Euroclear unless the representatives shall otherwise instruct. 3. COVENANTS OF THE COMPANY AND THE GUARANTOR. The Company and the Guarantor jointly and severally covenant with each Underwriter, as follows: (a) COMPLIANCE WITH SECURITIES REGULATIONS AND COMMISSION REQUESTS. The Company and the Guarantor, subject to Section 3(b), will comply with the requirements of Rule 430A of the 1933 Act Regulations, Rule 434 of the 1933 Act Regulations and Rule 462(b) of the 1933 Act Regulations, if and as applicable, and will notify the Representatives immediately, and confirm the notice in writing, of (i) the effectiveness of any post-effective amendment to the Registration Statement or the filing of any supplement or amendment to the Prospectus, (ii) the -6-

receipt of any comments from the Commission, (iii) any request by the Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus or for additional information, and (iv) the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or of any order preventing or suspending the use of the Prospectus, or of the suspension of the qualification of the Securities for offering or sale in any jurisdiction, or of the initiation or threatening of any proceedings for any of such purposes. The Company and the Guarantor will promptly effect the filings necessary pursuant to Rule 424 and will take such steps as it deems necessary to ascertain promptly whether the Prospectus transmitted for filing under Rule 424 was received for filing by the Commission and, in the event that it was not, it will promptly file the Prospectus. The Company and the Guarantor will make every reasonable effort to prevent the issuance of any stop order and, if any stop order is issued, to obtain the lifting thereof at the earliest possible moment. (b) FILING OF AMENDMENTS. Until the Closing Time, the Company and the Guarantor will give the Representatives notice of their intention to file or prepare any amendment to the Registration Statement or any amendment, supplement or revision to the Prospectus, whether pursuant to the 1933 Act, the 1934 Act or otherwise, will furnish the Representatives with copies of any such documents a reasonable amount of time prior to such proposed filing or use, as the case may be, and will not file or use any such document to which the Representatives or counsel for the Underwriters shall reasonably object. (c) DELIVERY OF REGISTRATION STATEMENTS. The Company and the Guarantor has furnished or, if requested in writing by the Representatives, will deliver to the Representatives and counsel for the Underwriters, without charge, signed copies of the Registration Statement as originally filed and of each amendment thereto (including exhibits filed therewith or incorporated by reference therein and documents incorporated or deemed to be incorporated by reference therein) and signed copies of all consents and certificates of experts, and will also deliver to the Representatives, without charge, a conformed copy of the Registration Statement as originally filed and of each amendment thereto (without exhibits) for each of the Underwriters. The Registration Statement and each amendment thereto furnished to the Underwriters will be identical to any electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T. (d) DELIVERY OF PROSPECTUSES. The Company and the Guarantor will furnish to each Underwriter, without charge, during the period when the Prospectus is required to be delivered under the 1933 Act or the 1934 Act, such number of copies of the Prospectus as such Underwriter may reasonably request. The Prospectus and any amendments or supplements thereto furnished to the Underwriters will be identical to any electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T. (e) CONTINUED COMPLIANCE WITH SECURITIES LAWS. The Company and the Guarantor will comply with the 1933 Act and the 1933 Act Regulations and the 1934 Act and the 1934 Act Regulations so as to permit the completion of the distribution of the Securities as contemplated in this Underwriting Agreement and in the Registration Statement and the Prospectus. If at any time when the Prospectus is required by the 1933 Act or the 1934 Act to be delivered in -7-

connection with sales of the Securities, any event shall occur or condition shall exist as a result of which it is necessary, in the opinion of counsel for the Underwriters or for the Company or the Guarantor, to amend the Registration Statement in order that the Registration Statement will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading or to amend or supplement the Prospectus in order that the Prospectus will not include an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein not misleading in the light of the circumstances existing at the time it is delivered to a purchaser, or if it shall be necessary, in the opinion of such counsel, at any such time to amend the Registration Statement or amend or supplement the Prospectus in order to comply with the requirements of the 1933 Act or the 1933 Act Regulations, the Company and the Guarantor will promptly prepare and file with the Commission, subject to Section 3(b), such amendment or supplement as may be necessary to correct such statement or omission or to make the Registration Statement or the Prospectus comply with such requirements, and the Company and the Guarantor will furnish to the Underwriters, without charge, such number of copies of such amendment or supplement as the Underwriters may reasonably request. (f) BLUE SKY QUALIFICATIONS. The Company and the Guarantor will use their best efforts, in cooperation with the Underwriters, to qualify the Securities for offering and sale under the applicable securities laws of such states and other jurisdictions (domestic or foreign) as the Representatives may designate and to maintain such qualifications in effect for a period of not less than one year from the date hereof; PROVIDED, HOWEVER, that the Company and the Guarantor shall not be obligated to file any general consent to service of process or to qualify as a foreign corporation or as a dealer in securities in any jurisdiction in which it is not so qualified or to subject itself to taxation in respect of doing business in any jurisdiction in which it is not otherwise so subject. In each jurisdiction in which the Securities have been so qualified, the Company and the Guarantor will file such statements and reports as may be required by the laws of such jurisdiction to continue such qualification in effect for a period of not less than one year from the date hereof. (g) EARNINGS STATEMENT. The Company and the Guarantor will timely file such reports pursuant to the 1934 Act as are necessary in order to make generally available to its securityholders as soon as practicable an earnings statement for the purposes of, and to provide the benefits contemplated by, the last paragraph of Section 11(a) of the 1933 Act. (h) USE OF PROCEEDS. The Company and the Guarantor will use the net proceeds received by it from the sale of the Securities in the manner specified in the Prospectus under "Use of Proceeds". (i) LISTING. The Company and the Guarantor will use their best efforts to effect the listing of the Securities, prior to the Closing Time, on the Luxembourg Stock Exchange. (j) RESTRICTION ON SALE OF SECURITIES. Between the date of this Underwriting Agreement and the Closing Time, neither the Company nor the Guarantor will, without the prior written consent of the Representatives, directly or indirectly, issue, sell, offer or contract to sell, -8-

grant any option for the sale of, any securities of the Company or the Guarantor substantially similar to the Securities. (k) REPORTING REQUIREMENTS. The Company and the Guarantor, during the period when the Prospectus is required to be delivered under the 1933 Act or the 1934 Act, will file all documents required to be filed with the Commission pursuant to the 1934 Act within the time periods required by the 1934 Act and the 1934 Act Regulations. 4. PAYMENT OF EXPENSES. (a) EXPENSES. The Company and the Guarantor will pay all expenses incident to the performance of its obligations under this Underwriting Agreement, including (i) the preparation, printing and filing of the Registration Statement (including financial statements and exhibits) as originally filed and of each amendment thereto, (ii) the preparation, printing and delivery to the Underwriters of this Underwriting Agreement, any agreement among Underwriters, the Indenture and such other documents as may be required in connection with the offering, purchase, sale, issuance or delivery of the Securities, (iii) the preparation, issuance and delivery of the Securities and any certificates for the Securities to the Underwriters, including any transfer taxes and any stamp or other duties payable upon the sale, issuance or delivery of the Securities to the Underwriters, (iv) the fees and disbursements of the Company's counsel, accountants and other advisors or agents (including transfer agents and registrars), as well as the fees and disbursements of the Trustee and its respective counsel, (v) the qualification of the Securities under state securities laws in accordance with the provisions of Section 3(f) hereof, including filing fees and the reasonable fees and disbursements of counsel for the Underwriters in connection therewith and in connection with the preparation, printing and delivery of the Blue Sky Survey, and any amendment thereto, (vi) the printing and delivery to the Underwriters of copies of the Prospectus and any amendments or supplements thereto, (vii) the fees charged by nationally recognized statistical rating organizations for the rating of the Securities, (viii) the fees and expenses incurred with respect to the listing of the Securities, and (ix) the filing fees incident to, and the reasonable fees and disbursements of counsel to the Underwriters in connection with, the review, if any, by the National Association of Securities Dealers, Inc. (the "NASD") of the terms of the sale of the Securities. 5. CONDITIONS OF UNDERWRITERS' OBLIGATIONS. The obligations of the Underwriters to purchase and pay for the Securities under this Underwriting Agreement are subject to the accuracy of the representations and warranties of the Company and the Guarantor contained in Section 1 hereof or in certificates of any officer of the Company, the Guarantor or any of their respective subsidiaries delivered pursuant to the provisions hereof, to the performance by the Company and the Guarantor of their respective covenants and other obligations hereunder, and to the following further conditions: (a) EFFECTIVENESS OF REGISTRATION STATEMENT. No stop order suspending the effectiveness of the Registration Statement shall have been issued under the 1933 Act and no proceedings for that purpose shall have been instituted or be pending or threatened by the Commission, and any request on the part of the Commission for additional information shall have been complied with to the reasonable satisfaction of counsel to the Underwriters. A -9-

prospectus containing information relating to the description of the Securities, the specific method of distribution and similar matters shall have been filed with the Commission in accordance with Rule 424. (b) OPINION OF COUNSEL FOR COMPANY. At Closing Time, the Representatives shall have received the favorable opinion, dated as of Closing Time, of Shearman & Sterling, counsel for the Company and the Guarantor, in form and substance satisfactory to counsel for the Underwriters, together with signed or reproduced copies of such letter for each of the other Underwriters, with respect to such matters as the Underwriters may reasonably request. (c) OPINION OF COUNSEL FOR UNDERWRITERS. At Closing Time, the Representatives shall have received the favorable opinion, dated as of Closing Time, of Hughes Hubbard & Reed LLP, counsel for the Underwriters, together with signed or reproduced copies of such letter for each of the other Underwriters, with respect to such matters as the Underwriters may reasonably request. (d) OFFICERS' CERTIFICATE. At Closing Time, there shall not have been, since the respective dates as of which information is given in the Prospectus, any material adverse change in the financial condition, results of operations or business affairs of the Company, the Guarantor and their respective subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business, and the Representatives shall have received a certificate of the President or a Vice President of the Company and the Guarantor and of the chief financial officer or chief accounting officer of the Company and the Guarantor, dated as of Closing Time, to the effect that (i) there has been no such material adverse change, (ii) the representations and warranties in Section 1 are true and correct with the same force and effect as though expressly made at and as of the Closing Time, (iii) the Company and the Guarantor have complied with all agreements and satisfied all conditions on its part to be performed or satisfied at or prior to the Closing Time, and (iv) no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been instituted, are pending or, to the best of such officer's knowledge, are threatened by the Commission. (e) ACCOUNTANT'S COMFORT LETTER. At the time of the execution of this Underwriting Agreement, the Representatives shall have received from PricewaterhouseCoopers LLP (and, with respect to the unaudited financial statements of CBS Corporation for the quarter ended March 31, 2000, KPMG LLP) a letter dated such date, in form and substance satisfactory to the Representatives, together with signed or reproduced copies of such letter for each of the other Underwriters, containing statements and information of the type ordinarily included in accountants' "comfort letters" to underwriters with respect to the financial statements and certain financial information contained or incorporated by reference in the Registration Statement and the Prospectus. (f) BRING-DOWN COMFORT LETTER. At Closing Time, the Representatives shall have received from PricewaterhouseCoopers LLP (and, with respect to the unaudited financial statements of CBS Corporation for the quarter ended March 31, 2000, KPMG LLP) a letter, dated as of Closing Time, to the effect that they reaffirm the statements made in the letter furnished pursuant to subsection (e) of this Section 5, except that the specified date referred to shall be a date not more than three business days prior to the Closing Time. -10-

(g) RATINGS. On or after the date hereof, there shall not have occurred any downgrading in the rating of any debt securities of the Company or the Guarantor by any "nationally recognized statistical rating organization" (as defined for purposes of Rule 436(g) under the 1933 Act), or any public announcement that any such organization has under surveillance or review its rating of any debt securities of the Company or the Guarantor (other than an announcement with positive implications of a possible upgrading, and no implication of a possible downgrading, of such rating). (h) APPROVAL OF LISTING. At Closing Time, the Securities shall have been approved for listing, subject only to official notice of issuance, on the Luxembourg Stock Exchange. (i) NO OBJECTION. If the Registration Statement for the offering of the Securities has been filed with the NASD for review, the NASD shall not have raised any objection with respect to the fairness and reasonableness of the underwriting terms and arrangements. (j) ADDITIONAL DOCUMENTS. At Closing Time, counsel for the Underwriters shall have been furnished with such documents and opinions as they may require for the purpose of enabling them to pass upon the issuance and sale of the Securities as herein contemplated, or in order to evidence the accuracy of any of the representations or warranties, or the fulfillment of any of the conditions, herein contained; and all proceedings taken by the Company and the Guarantor in connection with the issuance and sale of the Securities as herein contemplated shall be satisfactory in form and substance to the Representatives and counsel for the Underwriters. 6. INDEMNIFICATION. (a) INDEMNIFICATION OF UNDERWRITERS. The Company and the Guarantor jointly and severally agree to indemnify and hold harmless each Underwriter and each person, if any, who controls any Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act as follows: (1) against any and all loss, liability, claim, damage and expense whatsoever, as incurred, arising out of any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement (or any amendment thereto) or the omission or alleged omission therefrom of a material fact required to be stated therein or necessary to make the statements therein not misleading or arising out of any untrue statement or alleged untrue statement of a material fact included in the Base Prospectus or the Prospectus (or any amendment or supplement thereto), or the omission or alleged omission therefrom of a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; (2) against any and all loss, liability, claim, damage and expense whatsoever, as incurred, to the extent of the aggregate amount paid in settlement of any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission; provided that (subject to Section 6(d) -11-

below) any such settlement is effected with the written consent of the Company and the Guarantor; and (3) against any and all expense as reasonably incurred (including the fees and disbursements of counsel chosen by the Representatives), in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission, to the extent that any such expense is not paid under (1) or (2) above; PROVIDED, HOWEVER, that this indemnity agreement shall not apply to any loss, liability, claim, damage or expense to the extent arising out of any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with written information furnished to the Company by any Underwriter through the Representatives expressly for use in the Registration Statement (or any amendment thereto) or the Base Prospectus or the Prospectus (or any amendment or supplement thereto). (b) INDEMNIFICATION OF COMPANY, DIRECTORS AND OFFICERS. Each Underwriter severally agrees to indemnify and hold harmless the Company, its directors, each of its officers who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act against any and all loss, liability, claim, damage and expense described in the indemnity contained in subsection (a) of this Section, as incurred, but only with respect to untrue statements or omissions, or alleged untrue statements or omissions, made in the Registration Statement (or any amendment thereto) or the Base Prospectus or the Prospectus (or any amendment or supplement thereto) in reliance upon and in conformity with written information furnished to the Company by such Underwriter through the Representatives expressly for use in the Registration Statement (or any amendment thereto) or such Base Prospectus or the Prospectus (or any amendment or supplement thereto). (c) ACTIONS AGAINST PARTIES; NOTIFICATION. Each indemnified party shall give notice as promptly as reasonably practicable to each indemnifying party of any action commenced against it in respect of which indemnity may be sought hereunder, but failure to so notify an indemnifying party shall not relieve such indemnifying party from any liability hereunder to the extent it is not materially prejudiced as a result thereof and in any event shall not relieve it from any liability which it may have otherwise than on account of this indemnity agreement. In the case of parties indemnified pursuant to Section 6(a) above, counsel to the indemnified parties shall be selected by the Representatives, and, in the case of parties indemnified pursuant to Section 6(b) above, counsel to the indemnified parties shall be selected by the Company. An indemnifying party may participate at its own expense in the defense of any such action; PROVIDED, HOWEVER, that counsel to the indemnifying party shall not (except with the consent of the indemnified party) also be counsel to the indemnified party. In no event shall the indemnifying parties be liable for fees and expenses of more than one counsel (in addition to any local counsel) separate from their own counsel for all indemnified parties in connection with any one action or separate but similar or related actions in the same jurisdiction arising out of the same general allegations or circumstances. No indemnifying party shall, without the prior written consent of the indemnified parties, settle or compromise or consent to the entry of any -12-

judgment with respect to any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever in respect of which indemnification or contribution could be sought under this Section 6 or Section 7 hereof (whether or not the indemnified parties are actual or potential parties thereto), unless such settlement, compromise or consent (i) includes an unconditional release of each indemnified party from all liability arising out of such litigation, investigation, proceeding or claim and (ii) does not include a statement as to or an admission of fault, culpability or a failure to act by or on behalf of any indemnified party. (d) SETTLEMENT WITHOUT CONSENT IF FAILURE TO REIMBURSE. If at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for fees and expenses of counsel, such indemnifying party agrees that it shall be liable for any settlement of the nature contemplated by Section 6(a)(2) effected without its written consent if (i) such settlement is entered into more than 45 days after receipt by such indemnifying party of the aforesaid request, (ii) such indemnifying party shall have received notice of the terms of such settlement at least 30 days prior to such settlement being entered into and (iii) such indemnifying party shall not have reimbursed such indemnified party in accordance with such request prior to the date of such settlement. 7. CONTRIBUTION. If the indemnification provided for in Section 6 hereof is for any reason unavailable to or insufficient to hold harmless an indemnified party in respect of any losses, liabilities, claims, damages or expenses referred to therein, then each indemnifying party shall contribute to the aggregate amount of such losses, liabilities, claims, damages and expenses incurred by such indemnified party, as incurred, (i) in such proportion as is appropriate to reflect the relative benefits received by the Company, on the one hand, and the Underwriters, on the other hand, from the offering of the Securities under this Underwriting Agreement or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) above but also the relative fault of the Company, on the one hand, and the Underwriters, on the other hand, in connection with the statements or omissions which resulted in such losses, liabilities, claims, damages or expenses, as well as any other relevant equitable considerations. The relative benefits received by the Company, on the one hand, and the Underwriters, on the other hand, in connection with the offering of the Securities under this Underwriting Agreement shall be deemed to be in the same respective proportions as the total net proceeds from the offering of such Securities (before deducting expenses) received by the Company bear to the total underwriting discounts and commissions received by the Underwriters, in each case as set forth in the table on the cover page of the Prospectus. The relative fault of the Company, on the one hand, and the Underwriters, on the other hand, shall be determined by reference to, among other things, whether any such untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact relates to information supplied by the Company or by the Underwriters and the parties' relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. -13-

The Company, the Guarantor and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 7 were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to above in this Section 7. The aggregate amount of losses, liabilities, claims, damages and expenses incurred by an indemnified party and referred to above in this Section 7 shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue or alleged untrue statement or omission or alleged omission. Notwithstanding the provisions of this Section 7, no Underwriter shall be required to contribute any amount in excess of the amount by which the total price at which the Securities underwritten by it and distributed to the public were offered to the public exceeds the amount of any damages which such Underwriter has otherwise been required to pay by reason of any such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the 1933 Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. For purposes of this Section 7, each person, if any, who controls an Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act shall have the same rights to contribution as such Underwriter, and each director of the Company, each officer of the Company who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act shall have the same rights to contribution as the Company. The Underwriters' respective obligations to contribute pursuant to this Section 7 are several in proportion to the aggregate principal amount of Securities set forth opposite their respective names in Schedule I hereto, and not joint. 8. REPRESENTATIONS, WARRANTIES AND AGREEMENTS TO SURVIVE DELIVERY. All representations, warranties and agreements contained in this Underwriting Agreement or in certificates of officers of the Company, the Guarantor or any of their respective subsidiaries submitted pursuant hereto shall remain operative and in full force and effect, regardless of any investigation made by or on behalf of any Underwriter or controlling person, or by or on behalf of the Company, and shall survive delivery of and payment for the Securities. 9. TERMINATION. (a) UNDERWRITING AGREEMENT. The Representatives may terminate this Underwriting Agreement, by notice to the Company, at any time at or prior to the Closing Time, if (i) there has been, since the time of execution of this Underwriting Agreement or since the respective dates as of which information is given in the Prospectus, any material adverse change in the financial condition, results of operations or business affairs of the Company and its subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business, or (ii) there has occurred any material adverse change in the financial markets in the United States or, if the -14-

Securities include securities denominated or payable in, or indexed to, one or more foreign or composite currencies, in the international financial markets, or any outbreak of hostilities or escalation thereof or other calamity or crisis or any material change in national or international political, financial or economic conditions, in each case the effect of which is such as to make it, in the judgment of the Representatives, impracticable to market the Securities or to enforce contracts for the sale of the Securities, or (iii) trading in any securities of the Company has been suspended or materially limited by the Commission or the New York Stock Exchange or the American Stock Exchange, or if trading generally on the New York Stock Exchange or the American Stock Exchange has been suspended or materially limited, or minimum or maximum prices for trading have been fixed, or maximum ranges for prices have been required, by either of said exchanges or by such system or by order of the Commission, the NASD or any other governmental authority, or (iv) a banking moratorium has been declared by either Federal or New York authorities or, if the Securities include securities denominated or payable in, or indexed to, one or more foreign or composite currencies, by the relevant authorities in the related foreign country or countries. (b) LIABILITIES. If this Underwriting Agreement is terminated pursuant to this Section 9, such termination shall be without liability of any party to any other party except as provided in Section 4 hereof, and provided further that Sections 1, 6, 7 and 8 shall survive such termination and remain in full force and effect. 10. DEFAULT BY ONE OR MORE OF THE UNDERWRITERS. If one or more of the Underwriters shall fail at the Closing Time to purchase the Securities which it or they are obligated to purchase under this Underwriting Agreement (the "Defaulted Securities"), then the Representatives shall have the right, within 24 hours thereafter, to make arrangements for one or more of the non-defaulting Underwriters, or any other underwriters, to purchase all, but not less than all, of the Defaulted Securities in such amounts as may be agreed upon and upon the terms herein set forth; if, however, the Representatives shall not have completed such arrangements within such 24-hour period, then: (a) if the number or aggregate principal amount, as the case may be, of Defaulted Securities does not exceed 10% of the aggregate principal amount of Securities set forth on Schedule I hereto, the non-defaulting Underwriters shall be obligated, severally and not jointly, to purchase the full amount thereof in the proportions that their respective underwriting obligations under this Underwriting Agreement bear to the underwriting obligations of all non-defaulting Underwriters, or (b) if the number or aggregate principal amount, as the case may be, of Defaulted Securities exceeds 10% of the aggregate principal amount of Securities set forth on Schedule I hereto, the non-defaulting Underwriters shall have the right to purchase all, but shall not be under any obligation to purchase any, of the Securities, and if such non-defaulting Underwriters do not purchase all the Securities, this Agreement will terminate without liability to any non-defaulting Underwriter or the Company. No action taken pursuant to this Section 10 shall relieve any defaulting Underwriter from liability in respect of its default. -15-

In the event of any such default which does not result in a termination of this Underwriting Agreement, either the Representatives or the Company shall have the right to postpone the Closing Time for a period not exceeding seven days in order to effect any required changes in the Registration Statement or the Prospectus or in any other documents or arrangements. 11. NOTICES. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted by any standard form of telecommunication. Notices to the Underwriters shall be directed to the Representatives c/o Salomon Smith Barney at 388 Greenwich Street, New York, New York 10013, attention of Tristram Collins; and notices to the Company shall be directed to it at Viacom Inc., 1515 Broadway, New York, New York 10036, attention of General Counsel. 12. PARTIES. This Underwriting Agreement shall inure to the benefit of and be binding upon the Company, the Representatives and the other Underwriters and their respective successors. Nothing expressed or mentioned in this Underwriting Agreement is intended or shall be construed to give any person, firm or corporation, other than the Underwriters and the Company and their respective successors and the controlling persons and officers and directors referred to in Sections 6 and 7 and their heirs and legal representatives, any legal or equitable right, remedy or claim under or in respect of this Underwriting Agreement or any provision herein contained. This Underwriting Agreement and all conditions and provisions hereof are intended to be for the sole and exclusive benefit of the parties hereto and their respective successors, and said controlling persons and officers and directors and their heirs and legal representatives, and for the benefit of no other person, firm or corporation. No purchaser of Securities from any Underwriter shall be deemed to be a successor by reason merely of such purchase. 13. GOVERNING LAW AND TIME. THIS UNDERWRITING AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 14. EFFECT OF HEADINGS. The Article and Section headings herein and the Table of Contents are for convenience only and shall not affect the construction hereof. -16-

If the foregoing is in accordance with your understanding of our agreement, please sign and return to the Company a counterpart hereof, whereupon this Underwriting Agreement, along with all counterparts, will become a binding agreement between each of the Underwriters and the Company in accordance with its terms. Very truly yours, VIACOM INC. By: /s/ Robert G. Freedline ------------------------------------- Name: Robert G. Freedline Title: Vice President and Treasurer VIACOM INTERNATIONAL INC. By: /s/ Robert G. Freedline ------------------------------------- Name: Robert G. Freedline Title: Vice President and Treasurer CONFIRMED AND ACCEPTED, as of the date first above written: MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED SALOMON SMITH BARNEY INC. By: SALOMON SMITH BARNEY INC. By: /s/ Tristram Collins ------------------------------------- Name: Tristram Collins Title: Director For themselves and the other several Underwriters named in Schedule I to the foregoing Agreement. -17-

Schedule I PRINCIPAL AMOUNT PRINCIPAL AMOUNT OF NOTES TO BE OF DEBENTURES TO BE UNDERWRITER PURCHASED PURCHASED - ----------- ---------------- ------------------- Merrill Lynch, Pierce, Fenner and Smith Incorporated $460,000,000 $200,000,000 Salomon Smith Barney Inc. 460,000,000 200,000,000 Banc of America Securities LLC 63,250,000 27,500,000 Chase Securities Inc. 63,250,000 27,500,000 Deutsche Bank Securities Inc. 63,250,000 27,500,000 BNY Capital Markets, Inc. 20,125,000 8,750,000 FleetBoston Robertson Stephens Inc. 20,125,000 8,750,000 -------------- ------------ Total $1,150,000,000 $500,000,000 ============== ============

EXHIBIT 4.1 UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE COMPANY (AS DEFINED BELOW) OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE REGISTERED FORM IN ACCORDANCE WITH THE PROVISIONS OF THE INDENTURE (AS DEFINED BELOW) APPLICABLE TO SUCH EXCHANGE, THIS CERTIFICATE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITORY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITORY. VIACOM INC. 7.70% Senior Notes due 2010 Unconditionally guaranteed as to payment of principal of and interest by VIACOM INTERNATIONAL INC. (a wholly owned subsidiary of Viacom Inc.) No. [_] $[______________] CUSIP: 925524 AJ 9 CINS: 11553257 ISIN: US925524 AJ 95 Viacom Inc., a Delaware corporation (herein called the "Company", which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede & Co., or registered assigns, the principal sum of $[_________] on July 30, 2010, at the office or agency of the Company referred to below, and to pay interest thereon on January 30, 2001 and semi-annually thereafter, on January 30 and July 30 in each year, from August 1, 2000, or from the most recent Interest Payment Date to which interest has been paid or duly provided for, at the rate of 7.70% per annum, until the principal hereof is paid or duly provided for. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in such Indenture, be paid, in immediately available funds, to the Person in whose name this Security (or one or more Predecessor

Securities) is registered at the close of business on the Regular Record Date for such interest, which shall be the January 15 or July 15, as the case may be, next preceding such Interest Payment Date. Any such interest not so punctually paid or duly provided for shall forthwith cease to be payable to the Holder on such Regular Record Date, and such defaulted interest, may be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities not less than 10 days prior to such Special Record Date, or may be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Securities may be listed, and upon such notice as may be required by such exchange, all as more fully provided in said Indenture. Payment of the principal of and interest on this Security will be made at the Corporate Trust Office of the Trustee or such other office or agency of the Company as may be designated for such purpose, in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; PROVIDED HOWEVER, that each installment of interest and principal on this Security may at the Company's option be paid in immediately available funds by transfer to an account maintained by the payee located in the United States. This Security is one of a duly authorized issue of securities of the Company (herein called the "Securities"), unlimited in aggregate principal amount, issued and to be issued in one or more series under an indenture dated as of May 15, 1995 among the Company, Viacom International Inc., as guarantor (the "Guarantor") and Citibank, N.A., as successor to State Street Bank and Trust Company and The First National Bank of Boston, trustee (herein called the "Trustee", which term includes any successor trustee under the Indenture), as supplemented by the First Supplemental Indenture dated as of May 24, 1995 among the Company, the Guarantor and the trustee party thereto, as supplemented and amended by the Second Supplemental Indenture and Amendment No. 1 dated as of December 15, 1995 among the Company, the Guarantor and the trustee party thereto, as supplemented by the Third Supplemental Indenture dated as of July 22, 1996, among the Company, the Guarantor and the trustee party thereto and as further supplemented by the Fourth Supplemental Indenture dated as of August 1, 2000 among the Company, the Guarantor and the Trustee (as so supplemented and amended, the "Indenture"), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties, obligations and immunities thereunder of the Company, the Trustee and the Holders of the Securities, and of the terms upon which the Securities are, and are to be, authenticated and delivered. This Security is one of a series designated as 7.70% Senior Notes due 2010, initially limited in aggregate principal amount to $1,150,000,000. This Security is a global Security representing $[___________] of the Securities. If an Event of Default with respect to Securities of this series shall occur and be continuing, the principal of the Securities of this series may be declared due and

payable in the manner and with the effect provided in the Indenture. The Securities of this series are not subject to any sinking fund and are subject to redemption prior to maturity as set forth below. In the event that as a result of any change in, or amendments to, any laws (or any regulations or rulings promulgated thereunder) of the United States (or any political subdivision or taxing authority thereof or therein) or any change in, or amendments to, an official position regarding the application of such laws, regulations or rulings, which change or amendment is announced or becomes effective thereunder after July 25, 2000, the Company has become or, based upon a written opinion of independent counsel selected by the Company, will become obligated to pay, with respect to this series of Securities, any Additional Amounts, the Company may redeem all, but not less than all, the Securities of such series at any time at 100% of the principal amount thereof, together with accrued interest thereon, if any, to the Redemption Date (subject to the rights of holders of record on the relevant Regular Record Date that is prior to the Redemption Date to receive interest on the relevant Interest Payment Date). The Securities of this series will be redeemable at any time, at the option of the Company, in whole or from time to time in part, upon not less than 30 nor more than 60 days' prior notice, on any date prior to their maturity at a Redemption Price equal to the sum of 100% of the principal amount thereof and the Make-Whole Amount and any accrued and unpaid interest, to the Redemption Date (subject to the rights of holders of record on the relevant Regular Record Date that is on or prior to the Redemption Date to receive interest due on the relevant Interest Payment Date). In the case of any partial redemption, selection of the Securities of this series for redemption will be made by the Trustee in compliance with the requirements of the principal national securities exchange, if any, on which the Securities of this series are listed or, if the Securities of this series are not listed on a national securities exchange, by lot or by such other method as the Trustee in its sole discretion shall deem to be fair and appropriate; PROVIDED that no Securities of this series of $1,000 in principal amount or less shall be redeemed in part. If any Note is to be redeemed in part only, the notice of redemption relating to such Security shall state the portion of the principal amount thereof to be redeemed. A new Security in principal amount equal to the unredeemed portion thereof will be issued in the name of the Holder thereof upon cancellation of the original Security. The Indenture contains provisions for defeasance at any time of (a) the entire indebtedness of the Company on this Security and (b) certain restrictive covenants and the related Defaults and Events of Default, upon compliance by the Company with certain conditions set forth therein, which provisions apply to this Security. The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Securities of each series to be affected under the

Indenture at any time by the Company, the Guarantor and the Trustee with the consent of the Holders of not less than a majority in principal amount of the Outstanding Securities of each series affected thereby. The Indenture also contains provisions permitting the Holders of not less than specified percentages in aggregate principal amount of the Outstanding Securities of each series, on behalf of the Holders of all the Securities of such series, to waive compliance by the Company and the Guarantor with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by or on behalf of the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof whether or not notation of such consent or waiver is made upon this Security. As set forth in, and subject to, the provisions of the Indenture, no Holder of any Security of this series will have any right to institute any proceeding with respect to the Indenture or for any remedy thereunder, unless such Holder shall have previously given to the Trustee written notice of a continuing Event of Default with respect to this series, the Holders of not less than 25% in principal amount of the Outstanding Securities of this series shall have made written request, and offered reasonable indemnity, to the Trustee to institute such proceeding as trustee, and the Trustee shall not have received from the Holders of a majority in principal amount of the Outstanding Securities of this series a direction inconsistent with such request and shall have failed to institute such proceeding within 60 days; PROVIDED HOWEVER, that such limitations do not apply to a suit instituted by the Holder hereof for the enforcement of payment of the principal of or interest on this Security on or after the respective due dates expressed herein. No reference herein to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and interest on this Security at the times, place, and rate, and in the coin or currency, herein prescribed. As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Security is registerable on the Security Register of the Company, upon surrender of this Security for registration of transfer at the office or agency of the Company maintained for such purpose in New York, New York or at such other office or agency as the Company may designate, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Securities of this series of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. The Securities of this series are issuable only in registered form without coupons in denominations of $1,000 and any integral multiple thereof. As provided in

the Indenture and subject to certain limitations therein set forth, the Securities of this series are exchangeable for a like aggregate principal amount of Securities of this series and of a different authorized denomination, as requested by the Holder surrendering the same. No service charge shall be made for any registration of transfer or exchange of Securities, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. Prior to the time of due presentment of this Security for registration of transfer, the Company, the Guarantor, the Trustee and any agent of the Company, the Guarantor or the Trustee may treat the Person in whose name this Security is registered as the absolute owner hereof for all purposes, whether or not this Security be overdue, and none of the Company, the Guarantor, the Trustee or any agent of the Company, the Guarantor or the Trustee shall be affected by notice to the contrary. If at any time, a Depositary is at any time unwilling or unable to continue as Depositary and a successor Depositary is not appointed by the Company within 90 days, then the Company will execute and the Trustee will authenticate and deliver Securities in definitive registered form, in authorized denominations, and in an aggregate principal amount equal to the principal amount of this Security in exchange for this Security. Such Securities in definitive registered form shall be registered in such names and issued in such authorized denominations as the Depositary, pursuant to instructions from its direct or indirect participants or otherwise, shall instruct the Trustee. The Trustee shall deliver such Securities to the Persons in whose names such Securities are so registered. Unless the certificate of authentication hereon has been duly executed by or on behalf of Citibank, N.A., the Trustee under the Indenture, or its successor thereunder, by the manual signature of one of its authorized officers, this Security shall not be entitled to any benefit under the Indenture, or be valid or obligatory for any purpose. This Security shall be governed by, and construed in accordance with, the laws of the State of New York.

IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed. Dated: [___________] VIACOM INC., as Issuer By ------------------------------------- Attest: - -------------------------------------- Authorized Signature

TRUSTEE'S CERTIFICATE OF AUTHENTICATION This is one of the Securities of a series referred to in the within-mentioned Indenture. CITIBANK, N.A., as Trustee By ------------------------------------- Authorized Signatory Dated: [_____________]

GUARANTEE OF VIACOM INTERNATIONAL INC. FOR VALUE RECEIVED, VIACOM INTERNATIONAL INC., a corporation duly organized and existing under the laws of the State of Delaware (herein called the "Guarantor", which term includes any successor corporation under the Indenture referred to in the Security upon which this Guarantee is endorsed), hereby fully and unconditionally guarantees to the holder of the Security upon which this Guarantee is endorsed the due and punctual payment of the principal of and interest (including, in case of default, interest on principal and, to the extent permitted by applicable law, on overdue interest), if any, on this Security, when and as the same shall become due and payable, whether at Stated Maturity, upon redemption, upon declaration of acceleration or otherwise, according to the terms thereof and of the Indenture referred to therein. In case of the failure of Viacom Inc. or any successor thereto (herein called the "Company") punctually to pay any such principal or interest, the Guarantor hereby agrees to cause any such payment to be made punctually when and as the same shall become due and payable, whether at Stated Maturity, upon redemption, upon declaration of acceleration or otherwise, as if such payment were made by the Company. The Guarantor hereby agrees that its obligations hereunder shall be as if it were principal debtor and not merely surety, and shall be absolute and unconditional, irrespective of the identity of the Company, the validity, regularity or enforceability of this Security or said Indenture, the absence of any action to enforce the same, any waiver or consent by the Holder of this Security with respect to any provisions thereof, the recovery of any judgment against the Company or any action to enforce the same, or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a guarantor. The Guarantor hereby waives diligence, presentment, demand of payment, filing of claims with a court in the event of insolvency or bankruptcy of the Company, any right to require a proceeding first against the Company, protest, notice and all demands whatsoever and covenants that this Guarantee will not be discharged except by complete performance of the obligations contained in this Security and in this Guarantee. The Guarantor shall be subrogated to all rights of the Holder of this Security against the Company in respect of any amounts paid by the Guarantor pursuant to the provisions of this Guarantee or the Indenture referred to in this Security; PROVIDED, HOWEVER, that the Guarantor shall not be entitled to enforce or to receive any payment arising out of, or based upon, such right of subrogation until the principal of and interest on all Securities of the series of which the Security upon which this Guarantee is endorsed constitutes a part shall have been indefeasibly paid in full. The Indenture provides that in the event that this Guarantee would constitute or result in a fraudulent transfer or conveyance for purposes of, or result in a violation of, any United States federal, or applicable United States state, fraudulent transfer or

conveyance or similar law, then the liability of the Guarantor hereunder shall be reduced to the extent necessary to eliminate such fraudulent transfer or conveyance or violation under the applicable fraudulent transfer or conveyance or similar law. If the Trustee or the Holder of the Security upon which this Guarantee is endorsed is required by any court or otherwise to return to the Company or the Guarantor, or any custodian, receiver, liquidator, assignee, trustee, sequestrator or other similar official acting in relation to the Company or the Guarantor, any amount paid to the Trustee or such Holder in respect of the Security upon which this Guarantee is endorsed, this Guarantee, to the extent theretofore discharged, shall be reinstated in full force and effect. The Guarantor further agrees, to the fullest extent that it may lawfully do so, that, as between the Guarantor, on the one hand, and the Holders and the Trustee, on the other hand, the maturity of the obligations guaranteed hereby may be accelerated as provided in Article Five of the Indenture for the purposes of this Guarantee, notwithstanding any stay, injunction or other prohibition extant under any applicable bankruptcy law preventing such acceleration in respect of the obligations guaranteed hereby. This Guarantee shall be governed by, and construed in accordance with, the laws of the State of New York. Subject to the next following paragraph, the Guarantor hereby certifies and warrants that all acts, conditions and things required to be done and performed and to have happened precedent to the creation and issuance of this Guarantee and to constitute the same valid obligation of the Guarantor have been done and performed and have happened in due compliance with all applicable laws. This Guarantee shall not be valid or become obligatory for any purpose until the certificate of authentication on the Security upon which this Guarantee is endorsed has been signed by the Trustee under the Indenture referred to in this Security.

IN WITNESS WHEREOF, the Guarantor has caused this Guarantee to be signed by its Chairman of the Board, or its Vice Chairman of the Board, or its President, or one of its Executive Vice Presidents or Vice Presidents, or by its Treasurer or one of its Assistant Treasurers and attested by its Secretary or one of its Assistant Secretaries, manually or in facsimile. Dated: [___________] VIACOM INTERNATIONAL INC. By ------------------------------------- ATTEST: -----------------------------

EXHIBIT 4.2 UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE COMPANY (AS DEFINED BELOW) OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE REGISTERED FORM IN ACCORDANCE WITH THE PROVISIONS OF THE INDENTURE (AS DEFINED BELOW) APPLICABLE TO SUCH EXCHANGE, THIS CERTIFICATE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITORY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITORY. VIACOM INC. 7.875% Senior Debentures due 2030 Unconditionally guaranteed as to payment of principal of and interest by VIACOM INTERNATIONAL INC. (a wholly owned subsidiary of Viacom Inc.) No. [_] $[____________] CUSIP: 925524 AH 3 CINS: 11553508 ISIN: US925524 AH 30 Viacom Inc., a Delaware corporation (herein called the "Company", which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede & Co., or registered assigns, the principal sum of $[_________] on July 30, 2030, at the office or agency of the Company referred to below, and to pay interest thereon on January 30, 2001 and semi-annually thereafter, on January 30 and July 30 in each year, from August 1, 2000, or from the most recent Interest Payment Date to which interest has been paid or duly provided for, at the rate of 7.875% per annum, until the principal hereof is paid or duly provided for. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in such Indenture, be paid, in immediately available funds, to the Person in whose name this

2 Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, which shall be the January 15 or July 15, as the case may be, next preceding such Interest Payment Date. Any such interest not so punctually paid or duly provided for shall forthwith cease to be payable to the Holder on such Regular Record Date, and such defaulted interest, may be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities not less than 10 days prior to such Special Record Date, or may be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Securities may be listed, and upon such notice as may be required by such exchange, all as more fully provided in said Indenture. Payment of the principal of and interest on this Security will be made at the Corporate Trust Office of the Trustee or such other office or agency of the Company as may be designated for such purpose, in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; PROVIDED HOWEVER, that each installment of interest and principal on this Security may at the Company's option be paid in immediately available funds by transfer to an account maintained by the payee located in the United States. This Security is one of a duly authorized issue of securities of the Company (herein called the "Securities"), unlimited in aggregate principal amount, issued and to be issued in one or more series under an indenture dated as of May 15, 1995 among the Company, Viacom International Inc., as guarantor (the "Guarantor") and Citibank, N.A., as successor to State Street Bank and Trust Company and The First National Bank of Boston, trustee (herein called the "Trustee", which term includes any successor trustee under the Indenture), as supplemented by the First Supplemental Indenture dated as of May 24, 1995 among the Company, the Guarantor and the trustee party thereto, as supplemented and amended by the Second Supplemental Indenture and Amendment No. 1 dated as of December 15, 1995 among the Company, the Guarantor and the trustee party thereto, as supplemented by the Third Supplemental Indenture dated as of July 22, 1996, among the Company, the Guarantor and the trustee party thereto and as further supplemented by the Fourth Supplemental Indenture dated as of August 1, 2000 among the Company, the Guarantor and the Trustee (as so supplemented and amended, the "Indenture"), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties, obligations and immunities thereunder of the Company, the Trustee and the Holders of the Securities, and of the terms upon which the Securities are, and are to be, authenticated and delivered. This Security is one of a series designated as 7.875% Senior Debentures due 2030, initially limited in aggregate principal amount to $500,000,000. This Security is a global Security representing $[____________] of the Securities. If an Event of Default with respect to Securities of this series shall occur and be continuing, the principal of the Securities of this series may be declared due and payable in the manner and with the effect provided in the Indenture.

3 The Securities of this series are not subject to any sinking fund and are subject to redemption prior to maturity as set forth below. In the event that as a result of any change in, or amendments to, any laws (or any regulations or rulings promulgated thereunder) of the United States (or any political subdivision or taxing authority thereof or therein) or any change in, or amendments to, an official position regarding the application of such laws, regulations or rulings, which change or amendment is announced or becomes effective thereunder after July 25, 2000, the Company has become or, based upon a written opinion of independent counsel selected by the Company, will become obligated to pay, with respect to this series of Securities, any Additional Amounts, the Company may redeem all, but not less than all, the Securities of such series at any time at 100% of the principal amount thereof, together with accrued interest thereon, if any, to the Redemption Date (subject to the rights of holders of record on the relevant Regular Record Date that is prior to the Redemption Date to receive interest on the relevant Interest Payment Date). The Securities of this series will be redeemable at any time, at the option of the Company, in whole or from time to time in part, upon not less than 30 nor more than 60 days' prior notice, on any date prior to their maturity at a Redemption Price equal to the sum of 100% of the principal amount thereof and the Make-Whole Amount and any accrued and unpaid interest, to the Redemption Date (subject to the rights of holders of record on the relevant Regular Record Date that is on or prior to the Redemption Date to receive interest due on the relevant Interest Payment Date). In the case of any partial redemption, selection of the Securities of this series for redemption will be made by the Trustee in compliance with the requirements of the principal national securities exchange, if any, on which the Securities of this series are listed or, if the Securities of this series are not listed on a national securities exchange, by lot or by such other method as the Trustee in its sole discretion shall deem to be fair and appropriate; PROVIDED that no Securities of this series of $1,000 in principal amount or less shall be redeemed in part. If any Note is to be redeemed in part only, the notice of redemption relating to such Security shall state the portion of the principal amount thereof to be redeemed. A new Security in principal amount equal to the unredeemed portion thereof will be issued in the name of the Holder thereof upon cancellation of the original Security. The Indenture contains provisions for defeasance at any time of (a) the entire indebtedness of the Company on this Security and (b) certain restrictive covenants and the related Defaults and Events of Default, upon compliance by the Company with certain conditions set forth therein, which provisions apply to this Security. The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the

4 Securities of each series to be affected under the Indenture at any time by the Company, the Guarantor and the Trustee with the consent of the Holders of not less than a majority in principal amount of the Outstanding Securities of each series affected thereby. The Indenture also contains provisions permitting the Holders of not less than specified percentages in aggregate principal amount of the Outstanding Securities of each series, on behalf of the Holders of all the Securities of such series, to waive compliance by the Company and the Guarantor with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by or on behalf of the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof whether or not notation of such consent or waiver is made upon this Security. As set forth in, and subject to, the provisions of the Indenture, no Holder of any Security of this series will have any right to institute any proceeding with respect to the Indenture or for any remedy thereunder, unless such Holder shall have previously given to the Trustee written notice of a continuing Event of Default with respect to this series, the Holders of not less than 25% in principal amount of the Outstanding Securities of this series shall have made written request, and offered reasonable indemnity, to the Trustee to institute such proceeding as trustee, and the Trustee shall not have received from the Holders of a majority in principal amount of the Outstanding Securities of this series a direction inconsistent with such request and shall have failed to institute such proceeding within 60 days; provided however, that such limitations do not apply to a suit instituted by the Holder hereof for the enforcement of payment of the principal of or interest on this Security on or after the respective due dates expressed herein. No reference herein to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and interest on this Security at the times, place, and rate, and in the coin or currency, herein prescribed. As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Security is registerable on the Security Register of the Company, upon surrender of this Security for registration of transfer at the office or agency of the Company maintained for such purpose in New York, New York or at such other office or agency as the Company may designate, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Securities of this series of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. The Securities of this series are issuable only in registered form without coupons in denominations of $1,000 and any integral multiple thereof. As provided in the Indenture and subject to certain limitations therein set forth, the Securities of this series are exchangeable for a like aggregate principal amount of Securities of this series and of a different authorized denomination, as requested by the Holder surrendering the same.

5 No service charge shall be made for any registration of transfer or exchange of Securities, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. Prior to the time of due presentment of this Security for registration of transfer, the Company, the Guarantor, the Trustee and any agent of the Company, the Guarantor or the Trustee may treat the Person in whose name this Security is registered as the absolute owner hereof for all purposes, whether or not this Security be overdue, and none of the Company, the Guarantor, the Trustee or any agent of the Company, the Guarantor or the Trustee shall be affected by notice to the contrary. If at any time, a Depositary is at any time unwilling or unable to continue as Depositary and a successor Depositary is not appointed by the Company within 90 days, then the Company will execute and the Trustee will authenticate and deliver Securities in definitive registered form, in authorized denominations, and in an aggregate principal amount equal to the principal amount of this Security in exchange for this Security. Such Securities in definitive registered form shall be registered in such names and issued in such authorized denominations as the Depositary, pursuant to instructions from its direct or indirect participants or otherwise, shall instruct the Trustee. The Trustee shall deliver such Securities to the Persons in whose names such Securities are so registered. Unless the certificate of authentication hereon has been duly executed by or on behalf of Citibank, N.A., the Trustee under the Indenture, or its successor thereunder, by the manual signature of one of its authorized officers, this Security shall not be entitled to any benefit under the Indenture, or be valid or obligatory for any purpose. This Security shall be governed by, and construed in accordance with, the laws of the State of New York.

6 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed. Dated: [____________] VIACOM INC., as Issuer By______________________________ Attest: __________________________ Authorized Signature

7 TRUSTEE'S CERTIFICATE OF AUTHENTICATION This is one of the Securities of a series referred to in the within-mentioned Indenture. CITIBANK, N.A., as Trustee By____________________________________ Authorized Signatory Dated: [_____________]

8 GUARANTEE OF VIACOM INTERNATIONAL INC. FOR VALUE RECEIVED, VIACOM INTERNATIONAL INC., a corporation duly organized and existing under the laws of the State of Delaware (herein called the "Guarantor", which term includes any successor corporation under the Indenture referred to in the Security upon which this Guarantee is endorsed), hereby fully and unconditionally guarantees to the holder of the Security upon which this Guarantee is endorsed the due and punctual payment of the principal of and interest (including, in case of default, interest on principal and, to the extent permitted by applicable law, on overdue interest), if any, on this Security, when and as the same shall become due and payable, whether at Stated Maturity, upon redemption, upon declaration of acceleration or otherwise, according to the terms thereof and of the Indenture referred to therein. In case of the failure of Viacom Inc. or any successor thereto (herein called the "Company") punctually to pay any such principal or interest, the Guarantor hereby agrees to cause any such payment to be made punctually when and as the same shall become due and payable, whether at Stated Maturity, upon redemption, upon declaration of acceleration or otherwise, as if such payment were made by the Company. The Guarantor hereby agrees that its obligations hereunder shall be as if it were principal debtor and not merely surety, and shall be absolute and unconditional, irrespective of the identity of the Company, the validity, regularity or enforceability of this Security or said Indenture, the absence of any action to enforce the same, any waiver or consent by the Holder of this Security with respect to any provisions thereof, the recovery of any judgment against the Company or any action to enforce the same, or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a guarantor. The Guarantor hereby waives diligence, presentment, demand of payment, filing of claims with a court in the event of insolvency or bankruptcy of the Company, any right to require a proceeding first against the Company, protest, notice and all demands whatsoever and covenants that this Guarantee will not be discharged except by complete performance of the obligations contained in this Security and in this Guarantee. The Guarantor shall be subrogated to all rights of the Holder of this Security against the Company in respect of any amounts paid by the Guarantor pursuant to the provisions of this Guarantee or the Indenture referred to in this Security; PROVIDED, HOWEVER, that the Guarantor shall not be entitled to enforce or to receive any payment arising out of, or based upon, such right of subrogation until the principal of and interest on all Securities of the series of which the Security upon which this Guarantee is endorsed constitutes a part shall have been indefeasibly paid in full. The Indenture provides that in the event that this Guarantee would constitute or result in a fraudulent transfer or conveyance for purposes of, or result in a violation of, any United States federal, or applicable United States state, fraudulent transfer or conveyance or similar law, then the liability of the Guarantor hereunder shall be reduced to the extent necessary to eliminate such fraudulent transfer or conveyance or violation under the applicable fraudulent transfer or conveyance or similar law.

9 If the Trustee or the Holder of the Security upon which this Guarantee is endorsed is required by any court or otherwise to return to the Company or the Guarantor, or any custodian, receiver, liquidator, assignee, trustee, sequestrator or other similar official acting in relation to the Company or the Guarantor, any amount paid to the Trustee or such Holder in respect of the Security upon which this Guarantee is endorsed, this Guarantee, to the extent theretofore discharged, shall be reinstated in full force and effect. The Guarantor further agrees, to the fullest extent that it may lawfully do so, that, as between the Guarantor, on the one hand, and the Holders and the Trustee, on the other hand, the maturity of the obligations guaranteed hereby may be accelerated as provided in Article Five of the Indenture for the purposes of this Guarantee, notwithstanding any stay, injunction or other prohibition extant under any applicable bankruptcy law preventing such acceleration in respect of the obligations guaranteed hereby. This Guarantee shall be governed by, and construed in accordance with, the laws of the State of New York. Subject to the next following paragraph, the Guarantor hereby certifies and warrants that all acts, conditions and things required to be done and performed and to have happened precedent to the creation and issuance of this Guarantee and to constitute the same valid obligation of the Guarantor have been done and performed and have happened in due compliance with all applicable laws. This Guarantee shall not be valid or become obligatory for any purpose until the certificate of authentication on the Security upon which this Guarantee is endorsed has been signed by the Trustee under the Indenture referred to in this Security.

IN WITNESS WHEREOF, the Guarantor has caused this Guarantee to be signed by its Chairman of the Board, or its Vice Chairman of the Board, or its President, or one of its Executive Vice Presidents or Vice Presidents, or by its Treasurer or one of its Assistant Treasurers and attested by its Secretary or one of its Assistant Secretaries, manually or in facsimile. Dated: [_____________] VIACOM INTERNATIONAL INC. By____________________________________ ATTEST:__________________

EXHIBIT 4.3 EXECUTION COPY VIACOM INC., VIACOM INTERNATIONAL INC. AND CITIBANK, N.A., Trustee -------------------------------------------- FOURTH SUPPLEMENTAL INDENTURE Dated as of August 1, 2000 To Indenture dated as of May 15, 1995 among VIACOM INC., VIACOM INTERNATIONAL INC. and CITIBANK, N.A., Trustee -------------------------------------------- Senior Debt Securities

FOURTH SUPPLEMENTAL INDENTURE, dated as of August 1, 2000, among VIACOM INC., a Delaware corporation (the "COMPANY"), VIACOM INTERNATIONAL INC., a Delaware corporation (the "GUARANTOR"), and CITIBANK, N.A., a national banking association, as successor in interest to State Street Bank and Trust Company and The First National Bank of Boston, trustee under the Indenture (the "TRUSTEE"), dated as of May 15, 1995, among the Company, the Guarantor and the trustee party thereto, as supplemented by the First Supplemental Indenture, dated as of May 24, 1995, among the Company, the Guarantor and the trustee party thereto, as supplemented and amended by the Second Supplemental Indenture and Amendment No. 1, dated as of December 15, 1995, among the Company, the Guarantor and the trustee party thereto, and as further supplemented by the Third Supplemental Indenture, dated as of July 22, 1996, among the Company, the Guarantor and the trustee party thereto (as so amended, the "INDENTURE"). RECITALS OF THE COMPANY WHEREAS, Section 901(1) of the Indenture permits supplements thereto without the consent of Holders of Securities to add to the covenants of the Company for the benefit of all or any series of Securities; WHEREAS, Section 901(4) of the Indenture permits supplements thereto without the consent of Holders of Securities to change any provisions of the Indenture with respect to a series of Securities, where there are no Securities Outstanding which are entitled to the benefit of such provision; WHEREAS, as contemplated by Section 301 of the Indenture, the Company intends to issue and the Guarantor intends to guarantee from time to time two new series of Securities, consisting of the 7.70% Senior Notes due 2010 (the "SENIOR NOTES") and the 7.875% Senior Debentures due 2030 (the "SENIOR DEBENTURES") under the Indenture; and WHEREAS, the Company wishes to add to the covenants of the Company for the sole benefit of the Holders of the Senior Notes and the Senior Debentures and to make certain changes to other provisions of the Indenture, as contemplated by Section 301 of the Indenture. NOW, THEREFORE, THIS FOURTH SUPPLEMENTAL INDENTURE WITNESSETH: SECTION 1. For the purpose of this Fourth Supplemental Indenture, all terms used herein, unless otherwise defined, shall have the meaning assigned to them in the Indenture. SECTION 2. The Company shall issue from time to time, and the Guarantor shall guarantee from time to time, (a) Senior Notes, in the form of EXHIBIT A attached hereto, and (b) Senior Debentures, in the form of EXHIBIT B attached hereto. The Senior Notes will be initially issued in an aggregate principal amount of $1,150,000,000 and the Senior Debentures will be initially issued in an aggregate principal amount of $500,000,000. SECTION 3. For the sole benefit of the Holders of the Senior Notes and the Senior Debentures, Section 101 of the Indenture shall be amended by deleting the definitions of "Authorized

2 Newspaper," "Corporate Trust Office," "Principal Property," "Sale and Leaseback Transaction"and "United States Person" and replacing such definitions with the following definitions: "AUTHORIZED NEWSPAPER" means a newspaper, in the English language or in an official language of the country of publication, customarily published on each Business Day, whether or not published on Saturdays, Sundays or holidays, and of general circulation in the place in connection with which the term is used or in the financial community of such place; PROVIDED, HOWEVER, that so long as a series of Securities is listed on the Luxembourg Stock Exchange, Authorized Newspaper solely with respect to such series of Securities shall mean a leading newspaper having general circulation in Luxembourg (which is expected to be the LUXEMBOURG WORT) or, if publication in such newspaper is not practicable, a leading English language daily newspaper with general circulation in Europe, that is published each Business Day in morning editions, whether or not published in Saturday, Sunday or holiday editions. Where successive publications are required to be made in Authorized Newspapers, the successive publications may be made in the same or in different newspapers in the same city meeting the foregoing requirements and in each case on any Business Day. "CORPORATE TRUST OFFICE" means the office of the Trustee at which the corporate trust business of the Trustee shall, at any particular time, be principally administered, which office is, at the date of this Indenture, located at Citibank, N.A., 111 Wall Street, 14th Floor, New York, New York, 10005; Attention: Citibank Agency and Trust Services. "PRINCIPAL PROPERTY" means any parcel of real property and related fixtures or improvements (other than telecommunications equipment, including, without limitation, satellite transponders) owned by the Company or any Restricted Subsidiary and located in the United States, the aggregate book value of which on the date of determination exceeds $1.0 billion, other than any such real property and related fixtures or improvements which, as determined in good faith by the Board of Directors of the Company, is not of material importance to the total business conducted by the Company and its Subsidiaries, taken as a whole. "SALE AND LEASEBACK TRANSACTION" means any arrangement with any Person providing for the leasing by the Company or any Restricted Subsidiary of any Principal Property which has been or is to be sold or transferred by the Company or such Person; PROVIDED, HOWEVER, that "Sale and Leaseback Transaction" shall not include such arrangements that were existing on August 1, 2000, or at the time any Person owning a Principal Property becomes a Restricted Subsidiary (whether by acquisition or otherwise, including through merger or consolidation).

3 "UNITED STATES PERSON" means any individual who is a citizen or resident of the United States, a corporation, partnership or other entity created or organized in or under the laws of the United States, any state thereof or the District of Columbia (other than a partnership that is not treated as a United States Person under any applicable Treasury regulations), any estate the income of which is subject to United States federal income taxation regardless of its source, or any trust if a court within the United States is able to exercise primary supervision over the administration of the trust and one or more United States Persons have the authority to control all substantial decisions of the trust. Notwithstanding the preceding sentence, to the extent provided in the Treasury regulations, certain trusts in existence on August 20, 1996, and treated as United States Persons prior to such date that elect to continue to be treated as United States Persons, will also be United States Persons. SECTION 4. For the sole benefit of the Holders of the Senior Notes and Senior Debentures, Section 101 of the Indenture shall be amended by adding the following definitions, each in appropriate alphabetical order: "AGENT" means any Registrar, co-Registrar, Paying Agent or Authenticating Agent. "DEPOSITARY" means, as applicable, either the U.S. Depositary or the Common Depositary. "MAKE-WHOLE AMOUNT" means, with respect to a series of Securities, the excess, if any, of (i) the aggregate present value as of the Redemption Date of principal being redeemed and the amount of interest (exclusive of interest accrued to the Redemption Date) that would have been payable if redemption had not been made, determined by discounting, on a semiannual basis, the remaining principal and interest payment for such series of Securities at the Reinvestment Rate (determined on the third Business Day preceding the date notice of redemption shall have been given) from the dates on which the principal and interest would have been payable with respect to such series of Securities if the redemption had not been made, to the applicable Redemption Date, over (ii) the aggregate principal amount of the applicable series of Securities being redeemed. "NON-UNITED STATES PERSON" means a Person who is not a United States Person. "PARTICIPANT" means, a Person who has an account with a Depositary. "REINVESTMENT RATE" means 0.25% for the series of Securities designated as 7.70% Senior Notes due 2010, and means 0.35% for the series of Securities designated as 7.875% Senior Debentures due 2030, in each case plus

4 the arithmetic mean of the yields under the heading "Week Ending" published in the most recent Federal Reserve Statistical Release H.15 (or any comparable successor publication) under the caption "Treasury Constant Maturities" for the maturity (rounded to the nearest month) corresponding to the remaining life to maturity, as of the Maturity of the principal of the series of Securities being redeemed or paid. If no maturity exactly corresponds to the Maturity of such series of Securities, yields for the two published maturities most closely corresponding to the Maturity of such series of Securities would be so calculated and the Reinvestment Rate would be interpolated or extrapolated on a straight-line basis, rounding to the nearest month. The most recent Statistical Release published prior to the date of determination of the Make-Whole Amount will be used for purposes of calculating the Reinvestment Rate. SECTION 5. For the sole benefit of the Holders of the Senior Notes and Senior Debentures, Section 106 shall be amended by deleting clause (1) thereof and replacing such clause (1) in its entirety with the following: (1) such notice shall be sufficiently given to Holders of Registered Securities (unless otherwise herein expressly provided) (a) if in writing and mailed, first-class postage prepaid, to each such Holder affected by such event, at the address of such Holder as it appears in the Security Register, not earlier than the earliest date, and not later than the latest date, prescribed for the giving of such notice, and (b) for so long as a series of Registered Securities is listed on the Luxembourg Stock Exchange and it is required by rules of the Luxembourg Stock Exchange, publication shall have been made of such notice with regard to such series of Securities in the English language in an Authorized Newspaper. SECTION 6. For the sole benefit of the holders of the Senior Notes and the Senior Debentures, Section 305 is hereby deleted in its entirety and replaced by the following Sections 305, 305A and 305B: SECTION 305. REGISTRAR AND PAYING AGENT. The Company shall maintain an office or agency in the City of New York where Securities may be presented for registration of transfer or for exchange (the "REGISTRAR"), an office or agency in the City of New York where Securities may be presented for payment (the "PAYING AGENT") and an office or agency where notices and demands to or upon the Company in respect of the Securities and this Indenture may be served, which shall be in the Borough of Manhattan, The City of New York and, in the event any series of Securities is listed on the Luxembourg Stock Exchange, in Luxembourg with respect to such series. The Company shall cause the Registrar to keep a register of the Securities and of their transfer and exchange (the "SECURITY REGISTER"). The Security Register shall be in written form or any other form capable of being converted into written form within a reasonable time. The Company may have one or more co-Registrars and one or more additional Paying Agents.

5 The Company shall enter into an appropriate agency agreement with any Agent not a party to this Indenture. The agreement shall implement the provisions of this Indenture that relate to such Agent. The Company shall give prompt written notice to the Trustee of the name and address of any such Agent and any change in the address of such Agent. If the Company fails to maintain a Registrar, Paying Agent and/or agent for service of notices and demands, the Trustee shall act as such Registrar, Paying Agent and/or agent for service of notices and demands. The Company may remove any Agent upon written notice to such Agent and the Trustee; PROVIDED that no such removal shall become effective until (i) the acceptance of an appointment by a successor Agent to such Agent as evidenced by an appropriate agency agreement entered into by the Company and such successor Agent and delivered to the Trustee or (ii) notification to the Trustee that the Trustee shall serve as such Agent until the appointment of a successor Agent in accordance with clause (i) of this proviso. The Company, any Subsidiary of the Company, or any Affiliate of any of them may act as Paying Agent, Registrar or co-Registrar, and/or agent for service of notice and demands. The Company initially appoints the Trustee as Registrar, Paying Agent, Authenticating Agent and agent for service of notice and demands and Kredietbank S.A. Luxembourg as Paying Agent and agent for service of notice and demands in Luxembourg, at Kredietbank S.A. Luxembourg, 43, Boulevard Royal, L-2955 Luxembourg; Attention: Corporate Trust Department. The Trustee shall preserve in as current a form as is reasonably practicable the most recent list available to it of the names and addresses of Holders and shall otherwise comply with TIA ss. 312(a). If the Trustee is not the Registrar, the Company shall furnish to the Trustee as of each Regular Record Date and at such other times as the Trustee may reasonably request the names and addresses of Holders as they appear in the Security Register, including the aggregate principal amount of Securities held by each Holder. SECTION 305A. TRANSFER AND EXCHANGE. A Holder may transfer a Security only by written application to the Registrar stating the name of the proposed transferee and otherwise complying with the terms of this Indenture. No such transfer shall be effected until, and such transferee shall succeed to the rights of a Holder only upon, final acceptance and registration of the transfer by the Registrar in the Security Register. Prior to the registration of any transfer by a Holder as provided herein, the Company, the Trustee, and any agent of the Company shall treat the person in whose name the Security is registered as the owner thereof for all purposes whether or not the Security shall be overdue, and neither the Company, the Trustee, nor any such agent shall be affected by notice to the contrary. Furthermore, any Holder of a global Security shall, by acceptance of such global Security, agree that transfers of beneficial interests in such global Securities may be effected only through a book entry system maintained by the Holder of such global Security (or its agent) and that ownership of a beneficial

6 interest in the Security shall be required to be reflected in a book entry. When Securities are presented to the Registrar or a co-Registrar with a request to register the transfer or to exchange them for an equal principal amount of Securities of other authorized denominations, the Registrar shall register the transfer or make the exchange as requested if its requirements for such transactions are met (including that such Securities are duly endorsed or accompanied by a written instrument of transfer in form satisfactory to the Trustee and Registrar duly executed by the Holder thereof or by an attorney who is authorized in writing to act on behalf of the Holder). To permit registrations of transfers and exchanges, the Company shall execute and the Trustee shall authenticate Securities at the Registrar's request. No service charge shall be made for any registration of transfer or exchange or redemption of the Securities, but the Company may require payment of a sum sufficient to cover any transfer tax or similar governmental charge payable in connection therewith. The Registrar shall not be required (i) to issue, register the transfer of or exchange any Security during a period beginning at the opening of business 15 days before the day of the mailing of a notice of redemption of Securities selected for redemption under Article Eleven and ending at the close of business on the day of such mailing, or (ii) to register the transfer of or exchange any Security so selected for redemption in whole or in part, except the unredeemed portion of any Security being redeemed in part. SECTION 305B. BOOK-ENTRY PROVISIONS FOR GLOBAL SECURITIES. (a) Each global Security initially shall (i) be registered in the name of the Depositary for such global Security or the nominee of such Depositary, and (ii) be delivered, as applicable, either to the Trustee, as U.S. Depositary, or to the Common Depositary. Members of, or Participants in, the Depositary ("AGENT MEMBERS") shall have no rights under this Indenture with respect to any global Security held on their behalf by the Depositary, or the Trustee as its custodian or the Common Depositary, as applicable, or under such global Security, and the Depositary may be treated by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner of such global Security for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Company, the Trustee or any agent of the Company or the Trustee from giving effect to any written certification, proxy or other authorization furnished by the Depositary or impair, as between the Depositary and its Agent Members, the operation of customary practices governing the exercise of the rights of a holder of any Security. (b) Transfers of a global Security shall be limited to transfers of such global Security in whole, but not in part, to the Depositary, its successors or their respective nominees. Transfers of interests in one global Security to

7 parties who will hold the interests through the same global Security will be effected in the ordinary way in accordance with the respective rules and operating procedures of the applicable Depositaries. The provisions of the "Operating Procedures of the Euroclear System" and "Terms and Conditions Governing Use of Euroclear" of Euro-clear and the "General Terms and Conditions of Clearstream" and "Customer Handbook" of Cedel S.A. shall be applicable to interests in the global Securities that are held by Agent Members through Euro-clear and Cedel S.A. (c) Any beneficial interest in one of the global Securities that is transferred to a person who takes delivery in the form of an interest in another global Security will, upon transfer, cease to be an interest in such global Security and become an interest in such other global Security and, accordingly, will thereafter be subject to all transfer restrictions, if any, and other procedures applicable to beneficial interests in such other global Security for so long as it remains such an interest. (d) The registered holder of a global Security may grant proxies and otherwise authorize any person, including Agent Members and persons that may hold interests through Agent Members, to take any action which a Holder is entitled to take under this Indenture or the Securities. (e) The Securities are initially solely issuable as global Securities. Registered Securities shall only be transferred to all beneficial owners in exchange for their beneficial interests in a global Security, if (i) the Depositary with respect to such global Securities notifies the Company that it is unwilling or unable to continue as Depositary for such global Security, as the case may be, and a successor Depositary is not appointed by the Company within 90 days of such notice or (ii) an Event of Default has occurred and is continuing and the Registrar has received a request to the foregoing effect from the Depositary or the Trustee. (f) All Securities issued upon any transfer or exchange of Securities shall be valid, legally enforceable obligations of the Company, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Securities surrendered upon such transfer or exchange. SECTION 7. For the sole benefit of the Holders of the Senior Notes and Senior Debentures, Section 307 shall be amended by deleting the first paragraph thereof and replacing such paragraph in its entirety with the following: (a) Interest on any Registered Security which is payable, and is punctually paid or duly provided for, on any Interest Payment Date shall be paid, in immediately available funds, to the Person in whose name that Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest at the office or agency of the Company maintained for such purpose

8 pursuant to Section 1002; PROVIDED, HOWEVER, that each installment of interest on any Registered Security may at the Company's option be paid in immediately available funds by transfer to an account maintained by the payee located in the United States. SECTION 8. For the sole benefit of the Holders of the Senior Notes and Senior Debentures, Section 501 shall be amended by deleting in subparagraphs (4) and (5) thereunder, the references to the amount $100 million, and replacing such references with the amount $250 million. SECTION 9. For the sole benefit of the Holders of the Senior Notes and Senior Debentures, the first paragraph of Section 1007 of the Indenture is hereby deleted and replaced by the following paragraphs: The Company shall, subject to the exceptions and limitations set forth below, pay as additional interest on the Securities of any series, such additional amounts (the "ADDITIONAL AMOUNTS") as are necessary in order that the net payment to be made by the Company or by a Paying Agent on behalf of the Company, of the principal of and interest on a series of Securities to a Holder who is a non-United States Person, after deduction for any present or future tax, assessment or other governmental charge of the United States or a political subdivision or taxing authority thereof or therein, imposed by withholding with respect to such payment, will not be less than the amount provided in the Securities to be then due and payable; PROVIDED, HOWEVER, that the foregoing obligation to pay Additional Amounts shall not apply: (1) to any tax, assessment or other governmental charge that is imposed or withheld solely by reason of the Holder, or a fiduciary, settlor, beneficiary, member or shareholder of the Holder, if the Holder is an estate, trust, partnership or corporation, or a Person holding a power over an estate or trust administered by a fiduciary Holder, being considered as: (a) being or having been present or engaged in a trade or business in the United States or having had a permanent establishment in the United States; (b) having a current or former relationship with the United States, including a relationship as a citizen or resident thereof; (c) being or having been a foreign or domestic personal holding company, a passive foreign investment company or a controlled foreign corporation with respect to the United States or a corporation that has accumulated earnings to avoid United States federal income tax; (d) being or having a "10-percent shareholder" of the Company, as defined in Section 871(h)(3) of the United States Internal Revenue Code or any successor provision thereof; or

9 (e) being a bank receiving payments on an extension of credit made pursuant to a loan agreement entered into in the ordinary course of its trade or business; (2) to any Holder that is not the sole beneficial owner of a Security, or a portion thereof, or that is a fiduciary or partnership, but only to the extent that a beneficiary or settlor with respect to the fiduciary, a beneficial owner or member of the partnership would not have been entitled to the payment of any Additional Amount had the beneficiary, settlor, beneficial owner or member received directly its beneficial or distributive share of the payment; (3) to any tax, assessment or other governmental charge that is imposed or withheld by reason of the failure of the Holder or any other person to comply with certification, identification or information reporting requirements concerning the nationality, residence, identity or connection with the United States, or otherwise with respect to the status, of the Holder or beneficial owner of such Security (or any beneficiary, settlor, beneficial owner or member thereof), if compliance is required by statute, by regulation of the United States Treasury Department or by an applicable income tax treaty to which the United States is a party, or by any official interpretation or ruling promulgated pursuant to any of the foregoing, as a precondition to exemption from such tax, assessment or other governmental charge; (4) to any tax, assessment or other governmental charge that is imposed otherwise than by withholding by the Company or by a Paying Agent on its behalf from the payment; (5) to any tax, assessment or other governmental charge that is imposed or withheld solely by reason of a change in law, regulation, or administrative or judicial interpretation that becomes effective more than 15 days after the payment becomes due or is duly provided for, whichever occurs later; (6) to any estate, inheritance, gift, sales, excise, transfer, wealth or personal property tax or similar tax, assessment or other governmental charge; (7) to any tax, assessment or other governmental charge required to be withheld by any Paying Agent from any payment of principal of or interest on any Security, if such payment can be made without such withholding by any other Paying Agent on behalf of the Company; or (8) in the case of any combination of items (1), (2), (3), (4), (5), (6) and (7). The Securities are subject in all cases to any tax, fiscal or other law or regulation or administrative or judicial interpretation applicable thereto. Except as otherwise provided for in this Section 1007 and Section 1101, the Company shall not be required to make any payments with respect to any tax,

10 assessment or other governmental charge imposed by any government or a political subdivision or taxing authority thereof or therein. Whenever in this Indenture there is mentioned, in any context, the payment of the principal of (or premium, if any, on) or interest on, or in respect of, any Security of a series or payment of any related coupon or the net proceeds received on the sale or exchange of a Security of a series, such mention shall be deemed to include mention of the payment of Additional Amounts provided for by the terms of such series established pursuant to Section 301 to the extent that, in such context, Additional Amounts are, were or would be payable in respect thereof pursuant to such terms and express mention of the payment of Additional Amounts (if applicable) in any provisions hereof shall not be construed as excluding Additional Amounts in those provisions hereof where such express mention is not made. SECTION 10. For the sole benefit of the Holders of the Senior Notes and the Senior Debentures, Section 1010 of the Indenture is hereby deleted in its entirety and replaced by the following Section 1010: Section 1010. LIMITATIONS ON LIENS. The Company shall not create, assume or suffer to exist any Lien on any of its property or assets, without securing the Securities of any applicable series equally and ratably with (or prior to) such secured Indebtedness; PROVIDED, HOWEVER, that the foregoing shall apply only to Liens which in the aggregate exceed 15% of the Company's total consolidated assets as of the end of the Company's most recent accounting period preceding the creation or assumption of any such Lien (reduced by any Attributable Debt with respect to any Sale and Leaseback Transaction permitted under Section 1011 below). This restriction will not apply to Capitalized Leases or to Indebtedness secured by (a) Liens existing on August 1, 2000 and Liens on property of, or Indebtedness of, any Person at the time such Person becomes a Subsidiary (whether by acquisition or otherwise, including through merger or consolidation), (b) Liens in favor of the Company or a Subsidiary of the Company, (c) Liens existing at the time of acquisition of the assets secured thereby (including acquisition through merger or consolidation) and purchase money Liens, and (d) any extension, renewal or refunding of any Lien referred to in the foregoing clauses (a) through (c), inclusive. SECTION 11. For the sole benefit of the Holders of the Senior Notes and Senior Debentures, Section 1101 of the Indenture is hereby deleted in its entirety and replaced by the following Section 1101: Section 1101. OPTIONAL REDEMPTION. In the event that as a result of any change in, or amendments to, any laws (or any regulations or rulings promulgated thereunder) of the United

11 States (or any political subdivision or taxing authority thereof or therein) or any change in, or amendments to, an official position regarding the application of such laws, regulations or rulings, which change or amendment is announced or becomes effective thereunder after July 25, 2000, the Company has become or, based upon a written opinion of independent counsel selected by the Company, will become obligated to pay, with respect to a series of Securities, any Additional Amounts, the Company may redeem, in accordance with this Article Eleven, all, but not less than all, the Securities of such series at any time at 100% of the principal amount thereof, together with accrued interest thereon, if any, to the Redemption Date (subject to the rights of holders of record on the relevant Regular Record Date that is prior to the Redemption Date to receive interest on the relevant Interest Payment Date). In addition, the Securities of any given series will be redeemable, in accordance with this Article Eleven, at any time, at the option of the Company, in whole or from time to time in part, upon not less than 30 nor more than 60 days' prior notice, on any date prior to their maturity at a Redemption Price equal to the sum of 100% of the principal amount thereof and the Make-Whole Amount and any accrued and unpaid interest, to the Redemption Date (subject to the rights of holders of record on the relevant Regular Record Date that is on or prior to the Redemption Date to receive interest due on the relevant Interest Payment Date). The Make-Whole Amount with respect to such a redemption shall be calculated by an independent investment banking institution of national standing appointed by the Company. If the Company fails to so appoint an independent investment banking institution at least 45 Business Days prior to the Redemption Date, or if such institution is unwilling or unable to calculate the Make-Whole Amount, the calculation of such Make-Whole Amount shall be made by an independent investment banking institution of national standing appointed by the Trustee. If, for purposes of calculating the Make-Whole Amount, the Reinvestment Rate shall not be available as set forth in the definition thereof, the Reinvestment Rate shall be calculated by interpolation or extrapolation of comparable rates selected by the independent investment banking institution. SECTION 12. THE LAWS OF THE STATE OF NEW YORK SHALL GOVERN THIS FOURTH SUPPLEMENTAL INDENTURE. SECTION 13. This Fourth Supplemental Indenture may be executed in any number of counterparts, each of which when so executed shall be deemed to be an original, but such counterparts shall together constitute but one and the same instrument. SECTION 14. Except as herein amended with respect to the Senior Notes and Senior Securities, all applicable terms, conditions and provisions of the Indenture, as supplemented, shall continue in full force and effect and shall remain binding and enforceable in accordance with their respective terms.

12 [Remainder of page intentionally left blank.]

13 IN WITNESS WHEREOF, the parties have caused this Fourth Supplemental Indenture to be duly executed and attested, all as of the day and year first written above. VIACOM INC. By: /s/ Michael D. Fricklas ------------------------------- Name: Michael D. Fricklas Title: Executive Vice President, General Counsel and Secretary ATTEST By: /s/ Laura Franco --------------------------------- Name: Laura Franco Title: Assistant Secretary VIACOM INTERNATIONAL INC. By: /s/ Michael D. Fricklas ---------------------------------- Name: Michael D. Fricklas Title: Executive Vice President, General Counsel and Secretary ATTEST By: /s/ Laura Franco --------------------------------- Name: Laura Franco Title: Assistant Secretary CITIBANK, N.A. By: /s/ Pat DeFelice ---------------------------------- Name: Pat DeFelice Title: Vice President ATTEST By: /s/ Wafaa Orfy --------------------------------- Name: Wafaa Orfy Title: Assistant Vice President