POWER OF ATTORNEY



  The undersigned hereby constitutes and appoints Michael
D. Fricklas the undersigned's true and lawful attorney-in-
fact to:

*     Execute and file for and on behalf of the undersigned,
any  reports  on Forms 3, 4 and 5 (including any  amendments
thereto)  with respect to ownership of securities of  Viacom
Inc. (the "Company") that the undersigned may be required to
file  with  the  U.S. Securities and Exchange Commission  in
accordance with Section 16(a) of the Securities Exchange Act
of 1934 and the rules thereunder;

*      The   undersigned  acknowledges  that  the  foregoing
attorney-in-fact, in serving in such capacity at the request
of  the  undersigned, is not assuming, nor  is  the  Company
assuming,  any  of  the  undersigned's  responsibilities  to
comply  with  Section 16 of the Securities Exchange  Act  of
1934.

*    This  Power of Attorney shall remain in full force  and
effect  until the undersigned is no longer required to  file
Forms  3, 4 and 5 with respect to the undersigned's holdings
and transactions in securities issued by the Company, unless
earlier  revoked  by  the undersigned in  a  signed  writing
delivered to the foregoing attorney-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 8th day of June, 2004.



                  Signature:  /s/ Leslie Moonves
                             --------------------
                Print Name:  Leslie Moonves