-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 CByjmRxUPEYgJ2Z4jWrPAAG8XNB/KKwfvkQoO+2OapogaPFOHUqfgl7QqCG2GACS
 1VD+oK7G7dUmW6XEWI7ZgA==

<SEC-DOCUMENT>0000813828-04-000032.txt : 20040121
<SEC-HEADER>0000813828-04-000032.hdr.sgml : 20040121
<ACCEPTANCE-DATETIME>20040121174746
ACCESSION NUMBER:		0000813828-04-000032
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040116
FILED AS OF DATE:		20040121

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			REDSTONE SUMNER M
		CENTRAL INDEX KEY:			0001204726

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25113
		FILM NUMBER:		04536122

	BUSINESS ADDRESS:	
		STREET 1:		200 ELM STREET
		CITY:			DEDHAM
		STATE:			MA
		ZIP:			02026

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NAIRI INC
		CENTRAL INDEX KEY:			0001140175
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25113
		FILM NUMBER:		04536117

	BUSINESS ADDRESS:	
		STREET 1:		200 ELM STREET
		CITY:			DEDHAM
		STATE:			MA
		ZIP:			02026
		BUSINESS PHONE:		6174611600

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MARKETWATCH COM INC
		CENTRAL INDEX KEY:			0001068969
		STANDARD INDUSTRIAL CLASSIFICATION:	NEWSPAPERS:  PUBLISHING OR PUBLISHING & PRINTING [2711]
		IRS NUMBER:				943315360
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		825 BATTERY STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94111
		BUSINESS PHONE:		415-733-0500

	MAIL ADDRESS:	
		STREET 1:		825 BATTERY STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94111

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CBS BROADCASTING INC
		CENTRAL INDEX KEY:			0000018366
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEVISION BROADCASTING STATIONS [4833]
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25113
		FILM NUMBER:		04536120

	BUSINESS ADDRESS:	
		STREET 1:		1515 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		2128465680

	MAIL ADDRESS:	
		STREET 1:		1515 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036

	FORMER NAME:	
		FORMER CONFORMED NAME:	CBS INC
		DATE OF NAME CHANGE:	19920703

	FORMER NAME:	
		FORMER CONFORMED NAME:	COLUMBIA BROADCASTING SYSTEM INC
		DATE OF NAME CHANGE:	19740605

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			VIACOM INC
		CENTRAL INDEX KEY:			0000813828
		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:	000-25113
		FILM NUMBER:		04536121

	BUSINESS ADDRESS:	
		STREET 1:		1515 BROADWAY
		STREET 2:		51ST FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		2122586000

	MAIL ADDRESS:	
		STREET 1:		1515 BROADWAY
		STREET 2:		51ST FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NATIONAL AMUSEMENTS INC /MD/
		CENTRAL INDEX KEY:			0000913264
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEVISION BROADCASTING STATIONS [4833]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25113
		FILM NUMBER:		04536118

	BUSINESS ADDRESS:	
		STREET 1:		200 ELM STREET
		CITY:			DEDHAM
		STATE:			MA
		ZIP:			02026
		BUSINESS PHONE:		6174611600

	MAIL ADDRESS:	
		STREET 1:		200 ELM STREET
		CITY:			DEBHAM
		STATE:			MA
		ZIP:			02026

	FORMER NAME:	
		FORMER CONFORMED NAME:	NATIONAL AMUSEMENTS INC
		DATE OF NAME CHANGE:	19931008

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WESTINGHOUSE CBS HOLDING CO INC
		CENTRAL INDEX KEY:			0001276375
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEVISION BROADCASTING STATIONS [4833]
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25113
		FILM NUMBER:		04536119

	BUSINESS ADDRESS:	
		STREET 1:		1515 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		2128465680

	MAIL ADDRESS:	
		STREET 1:		1515 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>via1.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
	<periodOfReport>2004-01-16</periodOfReport>
	<notSubjectToSection16>1</notSubjectToSection16>
    <issuer>
        <issuerCik>0001068969</issuerCik>
        <issuerName>MARKETWATCH COM INC</issuerName>
        <issuerTradingSymbol>MKTW</issuerTradingSymbol>
	</issuer>
	<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000813828</rptOwnerCik>
            <rptOwnerName>VIACOM INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1515 BROADWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
			<isDirector>0</isDirector>
			<isOfficer>0</isOfficer>
			<isTenPercentOwner>1</isTenPercentOwner>
			<isOther>0</isOther>
		</reportingOwnerRelationship>
	</reportingOwner>
	<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000018366</rptOwnerCik>
            <rptOwnerName>CBS BROADCASTING INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1515 BROADWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
			<isDirector>0</isDirector>
			<isOfficer>0</isOfficer>
			<isTenPercentOwner>1</isTenPercentOwner>
			<isOther>0</isOther>
		</reportingOwnerRelationship>
	</reportingOwner>
	<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001276375</rptOwnerCik>
            <rptOwnerName>WESTINGHOUSE CBS HOLDING CO INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1515 BROADWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
			<isDirector>0</isDirector>
			<isOfficer>0</isOfficer>
			<isTenPercentOwner>1</isTenPercentOwner>
			<isOther>0</isOther>
		</reportingOwnerRelationship>
	</reportingOwner>
	<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000913264</rptOwnerCik>
            <rptOwnerName>NATIONAL AMUSEMENTS INC /MD/</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 ELM STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DEDHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02026</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
			<isDirector>0</isDirector>
			<isOfficer>0</isOfficer>
			<isTenPercentOwner>1</isTenPercentOwner>
			<isOther>0</isOther>
		</reportingOwnerRelationship>
	</reportingOwner>
	<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001140175</rptOwnerCik>
            <rptOwnerName>NAIRI INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 ELM STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DEDHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02026</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
			<isDirector>0</isDirector>
			<isOfficer>0</isOfficer>
			<isTenPercentOwner>1</isTenPercentOwner>
			<isOther>0</isOther>
		</reportingOwnerRelationship>
	</reportingOwner>
	<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001204726</rptOwnerCik>
            <rptOwnerName>REDSTONE SUMNER M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VIACOM INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1515 BROADWAY</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</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>2004-01-16</value>
			</transactionDate>
			<deemedExecutionDate>
			</deemedExecutionDate>
			<transactionCoding>
				<transactionFormType>4</transactionFormType>
				<transactionCode>J</transactionCode>
				<equitySwapInvolved>0</equitySwapInvolved>
				<footnoteId id="F1"/>
			</transactionCoding>
			<transactionAmounts>
				<transactionShares>
					<value>5636814</value>
				</transactionShares>
				<transactionPricePerShare>
					<footnoteId id="F1"/>
				</transactionPricePerShare>
				<transactionAcquiredDisposedCode>
					<value>D</value>
				</transactionAcquiredDisposedCode>
			</transactionAmounts>
			<postTransactionAmounts>
				<sharesOwnedFollowingTransaction>
					<value>0</value>
					<footnoteId id="F1"/>
				</sharesOwnedFollowingTransaction>
			</postTransactionAmounts>
			<ownershipNature>
				<directOrIndirectOwnership>
					<value>I</value>
				</directOrIndirectOwnership>
				<natureOfOwnership>
					<value>Indirect</value>
					<footnoteId id="F2"/>
				</natureOfOwnership>
			</ownershipNature>
		</nonDerivativeTransaction>
	</nonDerivativeTable>
	<footnotes>
		<footnote id="F1">In connection with the merger (the Merger) of the Issuer with a wholly-owned subsidiary of a company of the same name as the Issuer, MarketWatch.com, Inc. f/k/a NMP, Inc. (New MarketWatch), effective January 16, 2004, each share of the Issuer's Common Stock held by the Reporting Persons was exchanged for a share of Common Stock of New MarketWatch.  On the effective date of the Merger, the closing price of New MarketWatch's Common Stock was $9.87 per share.</footnote>
		<footnote id="F2">The Common Stock is owned by CBS Broadcasting Inc., a wholly-owned subsidiary of Westinghouse CBS Holding Company, Inc., which in turn is a wholly-owned subsidiary of Viacom Inc. (Viacom), but may also be deemed to be beneficially owned by (1) NAIRI, Inc. (NAIRI), which owns approximately 70% of Viacom's voting stock, (2) NAIRI's parent corporation, National Amusements, Inc. ("NAI"), and (3) Sumner M. Redstone, who is the controlling stockholder of NAI.
</footnote>
	</footnotes>
	<remarks>
	</remarks>
	<ownerSignature>
		<signatureName>By: Michael D. Fricklas, Executive Vice President</signatureName>
		<signatureDate>2004-01-21</signatureDate>
	</ownerSignature>
	<ownerSignature>
		<signatureName>By: Michael D. Fricklas, Executive Vice President</signatureName>
		<signatureDate>2004-01-21</signatureDate>
	</ownerSignature>
	<ownerSignature>
		<signatureName>By: Michael D. Fricklas, Executive Vice President</signatureName>
		<signatureDate>2004-01-21</signatureDate>
	</ownerSignature>
	<ownerSignature>
		<signatureName>By: Sumner M. Redstone, Chairman &amp; CEO</signatureName>
		<signatureDate>2004-01-21</signatureDate>
	</ownerSignature>
	<ownerSignature>
		<signatureName>By: Sumner M. Redstone, Chairman &amp; President</signatureName>
		<signatureDate>2004-01-21</signatureDate>
	</ownerSignature>
	<ownerSignature>
		<signatureName>/s/ Redstone, Sumner M.</signatureName>
		<signatureDate>2004-01-21</signatureDate>
	</ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----