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 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
ROSENTHALER ALBERT E
  2. Issuer Name and Ticker or Trading Symbol
LIBERTY MEDIA CORP [LINT; LCAP]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Senior Vice President
(Last)
(First)
(Middle)
12300 LIBERTY BLVD.
3. Date of Earliest Transaction (Month/Day/Year)
12/15/2006
(Street)

ENGLEWOOD, CO 80112
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
Liberty Interactive Series A Common Stock 12/15/2006   A   4,965 A $ 0 4,965 D  
Liberty Interactive Series A Common Stock               2,153 (1) (2) I By 401(k)Savings Plan
Liberty Capital Series A Common Stock 12/15/2006   A   2,152 A $ 0 2,152 D  
Liberty Capital Series A Common Stock               430 (1) (2) I By 401(k) Savings Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ROSENTHALER ALBERT E
12300 LIBERTY BLVD.
ENGLEWOOD, CO 80112
      Senior Vice President  

Signatures

 /s/ Albert E. Rosenthaler   12/19/2006
**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) These shares were received in connection with the Issuer's May 9, 2006 restructuring (the "Restructuring") and the related issuance of newly created tracking stocks, the Liberty Interactive common stock and the Liberty Capital common stock.
(2) The number of shares represents equivalent shares based on the fair market value of the shares of Liberty Interactive Series A common stock and Liberty Capital Series A common stock held by the unitized stock fund under the Issuer's 401(k) Savings Plan based on a report from the Plan Administrator dated as of November 30, 2006. The Reporting Person has an interest in the unitized fund, which holds shares of Liberty Interactive Series A common stock, Liberty Capital Series A common stock and short-term investments.
 
Remarks:
The trading symbols for the Liberty Interactive Series A and Series B common stock are LINTA and LINTB, respectively, and for the Liberty Capital Series A and Series B common stock are LCAPA and LCAPB, respectively.

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

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