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Exhibit 10.45

Univision Communications Inc.
1999 Avenue of the Stars, Suite 3050
Los Angeles, California 90067

March 7, 2002

CONFIDENTIAL

Grupo Televisa S.A.
Av. Vasco de Quiroga No. 2000
Colonia Santa Fe
01210 Mexico, D.F.
Mexico
Attention: Mr. Jaime Davila

Re:   Acquisition of Fonovisa Music Group

Gentlemen:

        We refer to the letter agreement (the "Letter Agreement") dated
December 19, 2001 (as amended), pursuant to which we have agreed to purchase and
you have agreed to sell the Fonovisa group of companies. In connection
therewith, the parties hereby agree as follows:

        (1)  To extend the date for execution and delivery of the Long-form
Agreement set forth in Section 5 of the Letter Agreement from March 8, 2002 to
March 22, 2002.

        (2)  To extend the date of the Closing to the tenth (10th) business day
following the satisfaction of the conditions set forth in Section 4 of the
Letter Agreement.

        Except as amended hereby, the Letter Agreement remains in full force and
effect in accordance with its terms.

        You acknowledge that our representatives have assisted your
representatives in preparing the disclosure schedules related to the Letter
Agreement. You further agree and acknowledge that the preparation of such
disclosure schedules and the information included thereon or omitted thereform
are your sole responsibility.

        If the foregoing sets forth over mutual agreement and understanding,
please execute below.

    Very truly yours,
 
 
UNIVISION COMMUNICATIONS INC.          
 
 
By:
 
/s/  C. DOUGLAS KRANWINKLE      

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    Name:   C. Douglas Kranwinkle     Title:   Executive Vice President and
General Counsel

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ACCEPTED, AGREED TO AND ACKNOWLEDGED
This 7th day of March, 2002

GRUPO TELEVISA S.A.        
By:
 
/s/  JUAN MIJARES ORTEGA      

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By:
 
/s/  RAFAEL CARABIAS PRINCIPE      

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Name:   Juan Mijares Ortega

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  Name:   Rafael Carabias Principe

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Title:   Legal Representative

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  Title:   Legal Representative

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Exhibit 10.45