[LETTERHEAD OF SHEARMAN & STERLING LLP]


 

212-848-7325
 
Via EDGAR
 
Kathryn T. Jacobson
Division of Corporation Finance
Securities and Exchange Commission
100 F Street, N.E.
Mail Stop 3720
Washington, D.C. 20549
 
 
Viacom Inc.
SEC Comment Letter dated July 17, 2007
 
Dear Ms. Jacobson:
 
By this letter, I am confirming on behalf of our client, Viacom Inc. (the “Company”), our conversation pursuant to which we agreed that the Company has until August 10, 2007 to respond to the above-referenced comment letter received from the staff of the Securities and Exchange Commission. As we discussed, while the Company has been actively preparing its response to the comment letter, in light of its upcoming earnings announcement and Form 10-Q filing, the Company requested the additional time in order to complete the review of its response.
 
If you have any questions concerning the foregoing, please do not hesitate to contact me at the telephone number appearing above.
 
Very truly yours,

/S/ STEPHEN T. GIOVE
 
Stephen T. Giove