Document:

EXHIBIT 10.53

                  SPONSORSHIP AGREEMENT
      for Boxing Event in China, on April 22, 2000

American Champion Media, Inc. ("ACM"), a Delaware company with headquar
at 1694 The Alameda, San Jose, CA 95126, U.S.A., is the  host and produ
a boxing event to take place at the Tian He Stadium in Guangzhou, China
"Event").  This Event is scheduled to take place on April 22, 2000, and
Sponsorship Agreement (the  "Agreement") dated as of April 14, 2000 is
by and between Shun Li  De Commerce & Trading Ltd ("SLD") a Beijing com
with headquarters at Xin Xing Dong Xiang, Bldg 1 Suite 1413, Xi Cheng
District, Beijing, China (the "Sponsor") and ACM.

1)      The Sponsor wishes to become a sponsor of the Event, a producti
of ACM, to take place on April 22, 2000 at the Tian He Stadium in
Guangzhou, China.

2)      As a sponsor of the Event, the Sponsor is entitled to the
following sponsorship components:

*  Two Floor Cards (12in x 66in) in prominent position for TV camera
*  Two Drapes over ropes (5in x 60in, with lettering within the middle
*  Two Ring Side banners (200cm x 15cm)
*  One overhead banner (5ft x 8 ft) to be hung over boxing ring
*  Other handout materials for audience

3)      For the above sponsorship components, the Sponsor agrees to pay
a total amount of US$400,000.00.  The amount is payable 180 days from t
date of the Event.

4)      This is understood between the parties that SLD may resale all
some of the above sponsorship components to other buyers, provided that
shall submit third party display materials at least five days prior to
event for ACM's approval.

5)      ACM retains all of its rights under copyright and trademark law
pertaining to the Event's intellectual property, whether registered or
unregistered, and any applications of the Event's logo, name, character
likeness.  Video and audio excerpts of the Event must have ACM's approv
writing prior to such use.  The Sponsor shall retain all of its rights
copyright and trademark laws pertaining to any of its intellectual prop

6)      Display materials from the Sponsor must be delivered to the Tia
He Stadium at least two days prior to the event.

7)      All covenants, promises and agreements by or on behalf of the
parties contained in this Agreement shall be binding upon and shall inu
the benefit of the successors and assigns of the  parties; but nothing
this Agreement, expressed or implied is intended to confer on any party
right to assign its rights or  obligations hereunder.  Nothing in this
Agreement, whether  expressed or implied, is intended to confer any rig
remedies  under or by reason of this Agreement on any persons other tha
parties to it and their respective successors and assigns, nor is anyth
in this Agreement intended to relieve or discharge the obligation or
liability of any third persons to any party to this Agreement, nor shal
provision give any third person any right of subrogation or action over
against any party to this  Agreement.

8)      This Agreement shall be governed by, and construed and enforced
accordance with, the laws of the State of California and the laws of Ho
Kong.  In the event of a dispute, the parties shall seek mediation at a
third country mutually agreed upon.

9)      This Agreement sets forth the entire agreement of the parties h
with regard to the subject matter hereof and supersedes and replaces al
prior agreements, understandings and representations, oral or written,
regard to such matter.

10)     This Agreement may be executed in two or more counterparts, eac
which shall be deemed an original, but all of which together shall
constitute one and the same instrument.

IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed as of the date hereby written.

/s/ Anthony K. Chan

Anthony K. Chan
Chief Executive Officer
American Champion Media, Inc.

/s/ He, Li

He, Li
Chief Financial Officer
Shun Li De Commerce & Trading LtdExhibit 10.54

                              REBOOT
                          Deal Memorandum

Date: May 3, 2000

"Agent for Licensor"    American Champion Marketing Group, Inc.
                        1694 The Alameda, Suite #100
                        San Jose, CA  95126
                        Contact: Joy Tashjian
                        Phone: 408-288-8098    Fax: 408-288-8098

"Licensee"              Irwin Toy Limited
                        43 Hanna Avenue
                        Toronto, ON  M6K1X6
                        Contact: Francess Wells Cunningham
                        Phone: 416-583-4548    Fax: 415-333-3257

Property:       Shall mean all characters, characterizations, names, sc
locales, themes and storylines, including all copyright material,
trademarks, (pending, registered or unregistered) now  existing, or
hereafter coming into existence and associated with the television seri
known as "ReBoot" but excluding Imax ReBoot  Ridefilms (Imax Rights) or
features produced under the Maxframe Joint Venture.

Initial Term:   Two (2) years and six months commencing July 1, 2000 an
expiring on December 31, 2002.

Renewal Option: If the Licensee is in full compliance with all the term
conditions of the Agreement for  the Initial Term and the Licensee shal
made royalty payments to the Licensor of no less than US$(deleted) or
US$(deleted) as the  case may be in respect of the Initial Term as act
in the Minimum Guarantee Clause,  then the Licensee shall have the sole
to extend the Agreement for an additional term of three years at the sa
royalty rates as apply  for the Initial Term.  If Licensee meets the
requirements and exercises Its right to extend the term of the Agreemen
Licensee shall  in respect of the renewal term, pay the Licensor a
nonrefundable Advance of US$(deleted), with a Minimum Guarantee of US(d
if the television episodes of the Property "ReBoot" are aired in all of
following countries by December 31, 2002:  U.K., France, Germany, Italy
Spain, and  US$(deleted) if they are not aired.

Territory:      Worldwide, excluding Japan.

Minimum Guarantee:      US $(deleted) provided however that in the even
television episodes of the Property  "Reboot" are not aired in all of t
following  countries: UK, France, Germany, Italy and  Spain by December
2002, the Minimum  Guarantee shall be US $(deleted).

Advance:        (i) US$(deleted) non-refundable advance against  royalt
upon the receipt of a fully- executed copy of this Deal Memorandum by
Licensee; and

        (ii) Such amount by July 1, 2001, if required,  which together
US$(deleted) advance under  (i) above and earned royalties paid up to J
30, 2001 would bring aggregate royalty and  royalty advance payments up
US$(deleted).

Balance Of Guarantee:   Due sixty (60) days prior to the expiration of
agreement if not previously earned and  paid in royalties.

Royalty Rate:   On North American sales where Irwin  distributes direct
retailers and consumers:         X% of net sales for the first US$(dele
X% of net sales for the second US$(deleted); X% thereafter;

        On International sales where Irwin markets through third party
distributors: X% of net sales

        On F.O.B. sales:      X% on the F.O.B. selling price for the fi
US$(deleted);  X% on the F.O.B. for the second US$(deleted); and
X% thereafter;

Grant of Right: Exclusive.

Licensed Articles Description:  Action Figures; Vinyl Figures;  Vehicle
for Action Figures; Die-cast  Vehicles; Plush Toys; Model Kits; Bendabl
Injection molding machines that create injected molded plastic figures
through a  process of melting the plastic in the machine;  Non-electron
superballs, also known as high  bounce balls, with a figure or disc emb
inside; Non-electronic or Interactive board games and jigsaw puzzles bu
specifically excluding trading card games or any form of 3- D puzzles;
carrying cases but specifically excluding all other types of bags or lu

Reporting and Remittances:      Thirty (30) days following the end of
each quarterly Calendar Period.

Marketing Date: Within three (3) months of the Commencement Date.

Post Expiration Disposal Period:        Ninety (90) days

Trademark and Copyright Notices:  ReBoot(TM) and (C) (year) Mainframe
Entertainment, Inc.        All Rights Reserved.

Submission of Production Samples:         Three (3) production samples
finished Article, and each item of promotional and packaging
material (i) upon  Packing to Licensor: completion of first production
and (ii)  annually thereafter.

Reservation Rights:     Licensor reserves to itself, without restrictio
all rights with respect to  Articles not specifically granted hereunder
including but not limited to premiums and giveaways.

Advertising:    Licensee agree to spend a minimum of (deleted) U.S.
Dollars (U.S.$deleted) on advertising and promotion in respect of the
Initial Term.

Liability Insurance:    Ten Million Canadian Dollars (CDN$10,000,000)
combined single limit with a deductible amount  not in excess of Twenty
Thousand Canadian Dollars (CDN$25,000) for each single occurrence for
bodily injury and/or for property damage.

Agreed To And Approved By:

Licenser:                               Licensee:
Mainframe Entertainment, Inc.           Irwin Toy Limited

Per:   /s/ Ian Pearson                  Per:   /s/ Francess Wells-Cunni
Title: CEO / President                  Title: Vice President - Marketi
Date:  15th May, 2000                   Date:  May 3, 2000

Agent:
American Champion Marketing Group, Inc.

Per:   /s/ Joy M. Tashjian
Title: CEO / President
Date:  9th May, 2000<PAGE>   1
                                                                     EXHIBIT 4.1

                        ASCENT ENTERTAINMENT GROUP, INC.,

                                       AND

                              THE BANK OF NEW YORK

                                     TRUSTEE

                          FIRST SUPPLEMENTAL INDENTURE

                                   DATED AS OF

                                  JUNE 8, 2000

                                       TO

                                    INDENTURE

                                   DATED AS OF

                                DECEMBER 22, 1997

<PAGE>   2

                  THIS FIRST SUPPLEMENTAL INDENTURE (this "Supplement"), is
entered into as of June 8, 2000, between Ascent Entertainment Group, Inc., a
Delaware corporation (the "Company"), and The Bank of New York, a New York
banking corporation, as Trustee (the "Trustee").

                                    RECITALS

                  WHEREAS, the Company and the Trustee are parties to an
Indenture dated as of December 22, 1997 (the "Indenture", capitalized terms used
and not otherwise defined herein having the respective meanings assigned to such
terms in the Indenture), pursuant to which the Company's 11 7/8% Notes Due 2004
(the "Notes") were issued and are outstanding; and

                  WHEREAS, the Company, Liberty Media Corporation, a Delaware
corporation ("Liberty") and Liberty AEG Acquisition, Inc., a Delaware
corporation and wholly owned indirect subsidiary of Liberty ("Liberty Sub"),
have entered into an Agreement and Plan of Merger dated February 22, 2000 (the
"Merger Agreement"), pursuant to which (1) Liberty and Liberty Sub commenced a
tender offer and acquired approximately 85% of the outstanding shares of common
stock, par value $.01 per share, of the Company and (2) Liberty Sub is to be
merged with and into the Company upon the terms and subject to the conditions
set forth therein (the "Merger"); and

                  WHEREAS, under Section 801 of the Indenture, the Company may
not merge with another corporation unless the Company, as the surviving
corporation, could, immediately after such transaction and after giving pro
forma effect thereto as if such transaction had occurred at the beginning of the
applicable four-quarter period, incur at least $1.00 of additional Indebtedness
(other than Permitted Indebtedness) pursuant to the first paragraph of Section
1010 of the Indenture, which provides:

         "The Company will not, and will not permit any Restricted Subsidiary
         to, create, issue, assume, guarantee or in any manner become directly
         or indirectly liable for the payment of, or otherwise incur
         (collectively, "incur"), any Indebtedness (including Acquired
         Indebtedness and the issuance of Disqualified Stock), except that (x)
         the Company may incur Indebtedness if, at the time of such event, the
         Fixed Charge Coverage Ratio for the immediately preceding four full
         fiscal quarters for which internal financial statements are available,
         taken as one accounting period, would have been equal to at least 2.0
         to 1.0 and (y) OCC may incur Indebtedness if, at the time of such
         event, the OCC Fixed Charge Coverage Ratio for the immediately
         preceding four full fiscal quarters for which internal financial
         statements are available, taken as one accounting period, would have
         been equal to at least 2.0 to 1.0."

; and

                  WHEREAS, although immediately after the Merger, the Company
would fail to meet the requirements of Section 801(c) of the Indenture, neither
the Fixed Charge Coverage Ratio nor the OCC Fixed Charge Coverage Ratio, as
calculated for the immediately preceding

                                       1
<PAGE>   3

four full fiscal quarters under Section 1010 of the Indenture, would be higher
immediately after the Merger than immediately prior to the Merger; and

                  WHEREAS, Section 901(g) of the Indenture provides that under
certain conditions, the Company, when authorized by a Board Resolution, and the
Trustee may, without the consent of any Holders, amend or supplement the
Indenture, inter alia, to make any provisions with respect to matters or
questions arising under the Indenture that do not adversely affect the interests
of the Holders in any material respect; and

                  WHEREAS, in connection with the Merger Agreement and the
proposed Merger, the Company and the Trustee, in accordance with Section 901 of
the Indenture and pursuant to appropriate Board Resolutions, have duly
determined to make and execute this First Supplemental Indenture in order to
permit the consummation of the Merger;

                  NOW, THEREFORE, for and in consideration of the premises and
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, it is mutually covenanted and agreed as follows:

                                   SECTION ONE

                             AMENDMENT TO INDENTURE

                  Section 801(c) of the Indenture is hereby amended by adding
the following proviso to the end thereof:

         "provided however, this Section 801(c) shall not apply to a merger of
         the Company with a corporation formed and operated solely for the
         purpose of acquiring and holding stock in the Company, in which the
         Company is the surviving corporation, and immediately after which
         neither the Fixed Charge Coverage Ratio nor the OCC Fixed Charge
         Coverage Ratio, each as required to be calculated for the immediately
         preceding four full fiscal quarters under Section 1010 of this
         Indenture, is higher than immediately prior to the merger;"

                                   SECTION TWO

                                  RATIFICATION

                  Except as expressly amended and supplemented by this
Supplement, the Indenture shall remain unchanged and in full force and effect.
This Supplement shall be construed as supplemental to the Indenture and shall
form a part thereof.

                                       2
<PAGE>   4

                                  SECTION THREE

                                  GOVERNING LAW

                  This Supplement shall be governed by and construed in
accordance with the laws of the State of New York applicable to agreements made
and to be performed therein.

                                  SECTION FOUR

                                  COUNTERPARTS

                  This instrument may be executed in any number of counterparts,
each of which so executed shall be deemed to be an original, but all such
counterparts shall together constitute but one and the same instrument.

                                       3
<PAGE>   5

                  IN WITNESS WHEREOF, each of the Company and the Trustee, has
caused this Supplement to be signed as of the day and year first above written.

                                      ASCENT ENTERTAINMENT GROUP, INC.

                                      By
                                        ----------------------------------------
                                        Arthur M. Aaron
                                        Vice President, Business Affairs

                                      THE BANK OF NEW YORK, Trustee

                                      By
                                        ----------------------------------------
                                        Name:
                                             -----------------------------------
                                        Title:
                                              ----------------------------------

                                       4

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