Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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
OMB APPROVAL
OMB Number: 3235-0104
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
  Schwartz Gil D
2. Date of Event Requiring Statement (Month/Day/Year)
12/31/2005
3. Issuer Name and Ticker or Trading Symbol
CBS CORP [CBS, CBS.A]
(Last)
(First)
(Middle)
51 WEST 52ND STREET
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EVP, Corporate Communications
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10019
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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
CBS Class B common stock 185
D
 
CBS Class B common stock 682
I
By 401(k)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock option (right to buy) (1)   (2) 01/26/2008 CBS Class B common stock 27,633 $ 21.5716 D  
Employee Stock Option (right to buy) (1)   (2) 01/26/2009 CBS Class B common stock 55,267 $ 24.7362 D  
Employee Stock Option (right to buy) (1)   (2) 03/31/2009 CBS Class B common stock 1,207 $ 28.9924 D  
Employee Stock Option (right to buy) (1)   (2) 01/25/2010 CBS Class B common stock 55,267 $ 44.1875 D  
Employee Stock Option (right to buy) (1)   (2) 04/01/2010 CBS Class B common stock 891 $ 41.0464 D  
Employee Stock Option (right to buy) (1)   (2) 01/31/2011 CBS Class B common stock 57,304 $ 43.3473 D  
Employee Stock Option (right to buy) (1)   (2) 04/01/2011 CBS Class B common stock 1,180 $ 33.8965 D  
Employee Stock Option (right to buy) (1)   (2) 01/30/2012 CBS Class B common stock 57,304 $ 31.0184 D  
Employee Stock Option (right to buy) (1)   (2) 03/30/2012 CBS Class B common stock 1,123 $ 37.4067 D  
Employee Stock Option (right to buy) (1)   (3) 01/26/2013 CBS Class B common stock 40,113 $ 29.3537 D  
Employee Stock Option (right to buy) (1)   (2) 01/29/2013 CBS Class B common stock 57,304 $ 30.8849 D  
Employee Stock Option (right to buy) (1) 04/01/2006 03/28/2013 CBS Class B common stock 1,482 $ 29.6913 D  
Employee Stock Option (right to buy) (1)   (2) 01/28/2014 CBS Class B common stock 57,304 $ 31.7173 D  
Employee Stock Option (right to buy) (1) 04/01/2007 03/31/2014 CBS Class B common stock 1,632 $ 30.6337 D  
Employee Stock Option (right to buy) (1) 04/01/2008 03/31/2015 CBS Class B common stock 1,917 $ 27.3826 D  
Restricted Share Units   (4)   (4) CBS Class B common stock 7,163 $ (4) D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Schwartz Gil D
51 WEST 52ND STREET
NEW YORK, NY 10019
      EVP, Corporate Communications  

Signatures

By: /s/ Angeline C. Straka, Attorney-in-fact 01/10/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) Right to buy under Issuer's long term incentive plan.
(2) Current.
(3) These options vest in four equal annual installments beginning on January 26, 2006.
(4) The Restricted Share Units will vest in four equal annual installments beginning on January 26, 2006 and will be settled by delivery of a corresponding number of the Issuer's shares upon vesting.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.