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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 8tygOuNcwQZEpkmhHHu+xg==

<SEC-DOCUMENT>0001104659-03-028038.txt : 20031208
<SEC-HEADER>0001104659-03-028038.hdr.sgml : 20031208
<ACCEPTANCE-DATETIME>20031208174408
ACCESSION NUMBER:		0001104659-03-028038
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031205
FILED AS OF DATE:		20031208

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ON COMMAND CORP
		CENTRAL INDEX KEY:			0001020871
		STANDARD INDUSTRIAL CLASSIFICATION:	CABLE & OTHER PAY TELEVISION SERVICES [4841]
		IRS NUMBER:				770435194
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		6331 SAN IGNACIO AVENUE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95119
		BUSINESS PHONE:		4083604500

	MAIL ADDRESS:	
		STREET 1:		6331 SAN IGNACIO AVENUE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95119

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ASCENT ACQUISITION CORP
		DATE OF NAME CHANGE:	19960812

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LIBERTY MEDIA CORP /DE/
		CENTRAL INDEX KEY:			0001082114
		STANDARD INDUSTRIAL CLASSIFICATION:	CABLE & OTHER PAY TELEVISION SERVICES [4841]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21315
		FILM NUMBER:		031043241

	BUSINESS ADDRESS:	
		STREET 1:		12300 LIBERTY BLVD.
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112
		BUSINESS PHONE:		7208755400

	MAIL ADDRESS:	
		STREET 1:		12300 LIBERTY BLVD.
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>a4.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
  <periodOfReport>2003-12-05</periodOfReport>
  <notSubjectToSection16>1</notSubjectToSection16>
    <issuer>
        <issuerCik>0001020871</issuerCik>
        <issuerName>ON COMMAND CORP</issuerName>
        <issuerTradingSymbol>ONCO</issuerTradingSymbol>
  </issuer>
  <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001082114</rptOwnerCik>
            <rptOwnerName>LIBERTY MEDIA CORP /DE/</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>12300 LIBERTY MEDIA CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ENGLEWOOD</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80112</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
      <isDirector>0</isDirector>
      <isOfficer>0</isOfficer>
      <isTenPercentOwner>1</isTenPercentOwner>
      <isOther>0</isOther>
    </reportingOwnerRelationship>
  </reportingOwner>
  <nonDerivativeTable>
    <nonDerivativeTransaction>
      <securityTitle>
        <value>Common Stock</value>
      </securityTitle>
      <transactionDate>
        <value>2003-12-05</value>
      </transactionDate>
      <transactionCoding>
        <transactionFormType>4</transactionFormType>
        <transactionCode>J</transactionCode>
        <equitySwapInvolved>0</equitySwapInvolved>
        <footnoteId id="F1"/>
        <footnoteId id="F2"/>
      </transactionCoding>
      <transactionTimeliness>
        <value></value>
      </transactionTimeliness>
      <transactionAmounts>
        <transactionShares>
          <value>22897677</value>
        </transactionShares>
        <transactionPricePerShare>
          <footnoteId id="F1"/>
          <footnoteId id="F2"/>
        </transactionPricePerShare>
        <transactionAcquiredDisposedCode>
          <value>D</value>
        </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
        <sharesOwnedFollowingTransaction>
          <value>7924663</value>
        </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
        <directOrIndirectOwnership>
          <value>I</value>
        </directOrIndirectOwnership>
        <natureOfOwnership>
          <value>By subsidiary</value>
          <footnoteId id="F1"/>
          <footnoteId id="F2"/>
        </natureOfOwnership>
      </ownershipNature>
    </nonDerivativeTransaction>
  </nonDerivativeTable>
  <footnotes>
    <footnote id="F1">On 12/5/03, ONCO Acquisition Co. ("Merger Sub"), an indirectly controlled subsidiary of Reporting Person, merged with and into Issuer with Issuer as the surviving corporation in the merger.  Immediately prior to the effective time of the merger, Merger Sub held 22,897,677 shares of common stock of Issuer.  At the effective time of the merger, each publicly held share of common stock of the Issuer was converted into the right to receive .175 shares of Series A common stock of Reporting Person and cash in lieu of a fractional share; all of Issuer's outstanding common stock was canceled and retired; and, the outstanding shares of common stock of Merger Sub were converted into 7,924,663 shares, equal to the sum of (i) the number of shares of Issuer common stock converted in the Merger and (ii) the number of shares of Issuer common stock held by dissenters to the Merger.  </footnote>
    <footnote id="F2">(continuation of Footnote 1):  Such shares will constitute the only outstanding shares of common stock of the Issuer as the surviving corporation (other than dissenting shares, if any).  Reporting Person directly and indirectly beneficially owns 7,924,663 shares of common stock of the surviving corporation.  Subsequent to the merger, Issuer filed Form 15 with the Securities and Exchange Commission.</footnote>
  </footnotes>
  <ownerSignature>
    <signatureName>/s/ By: Elizabeth M. Markowski, Senior Vice President</signatureName>
    <signatureDate>2003-12-05</signatureDate>
  </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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