FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * MCGARVIE BLYTHE J   2. Issuer Name and Ticker or Trading Symbol Viacom Inc. [VIA, VIAB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 1515 BROADWAY 3. Date of Earliest Transaction (Month/Day/Year) 01/31/2011 (Street) NEW YORK, NY 10036 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class B Common Stock 01/31/2011   M   1,887 (1) A (1) 6,406 D   Class B Common Stock 01/31/2011   A   20 (2) A (2) 6,426 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Director Stock Option (Right to Buy) (3)

$ 41.55

01/31/2011

A

5,582

(4)

01/31/2021

Class B Common Stock

5,582

(3)

5,582

D

Restricted Share Units (5)

(6)

01/31/2011

A

1,685

01/31/2012(6)

(6)

Class B Common Stock

1,685

(5)

1,685

D

Restricted Share Units (7)

(1)

01/31/2011

M

1,887

(1)

(1)

Class B Common Stock

1,887

(7)

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MCGARVIE BLYTHE J 1515 BROADWAY NEW YORK, NY 10036	X

Signatures

/s/ Michael D. Fricklas, Attorney-in-Fact for Blythe J. McGarvie		02/02/2011
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Shares of the Issuer's Class B common stock were issued to the Reporting Person on January 31, 2011 upon vesting of previously granted Restricted Share Units "RSUs"). On the date of vesting, the closing price of the Issuer's Class B common stock on the New York Stock Exchange was $41.55 per share.
(2)	Represents shares of the Issuer's Class B common stock issued to the Reporting Person in respect of dividend equivalents accrued on, and prior to vesting of, the RSUs.
(3)	Granted under the Viacom Inc. 2011 Stock Option Plan for Outside Directors for no consideration.
(4)	The Stock Options will vest annually in three equal installments beginning on January 31, 2012.
(5)	Granted under the Viacom Inc. 2011 RSU Plan for Outside Directors for no consideration.
(6)	The Restricted Share Units will vest on January 31, 2012 and will be settled by delivery of a corresponding number of shares of the Issuer's Class B common stock upon vesting, unless the Reporting Person has elected to defer settlement.
(7)	Granted under the Viacom Inc. 2006 RSU Plan for Outside Directors for no consideration.

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