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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001209191-08-028885.txt : 20080509
<SEC-HEADER>0001209191-08-028885.hdr.sgml : 20080509
<ACCEPTANCE-DATETIME>20080509160523
ACCESSION NUMBER:		0001209191-08-028885
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080507
FILED AS OF DATE:		20080509
DATE AS OF CHANGE:		20080509

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:	001-32686
		FILM NUMBER:		08818489

	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:	001-32686
		FILM NUMBER:		08818488

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

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Viacom Inc.
		CENTRAL INDEX KEY:			0001339947
		STANDARD INDUSTRIAL CLASSIFICATION:	CABLE & OTHER PAY TELEVISION SERVICES [4841]
		IRS NUMBER:				203515052
		STATE OF INCORPORATION:			DE

	BUSINESS ADDRESS:	
		STREET 1:		1515 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		(212) 258-6000

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

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	New Viacom Corp.
		DATE OF NAME CHANGE:	20050927

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:	001-32686
		FILM NUMBER:		08818490

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-05-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001339947</issuerCik>
        <issuerName>Viacom Inc.</issuerName>
        <issuerTradingSymbol>VIA, VIAB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001204726</rptOwnerCik>
            <rptOwnerName>REDSTONE SUMNER M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1515 BROADWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman of the Board</officerTitle>
        </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>1</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>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-05-07</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>348944</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>40.1784</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25307180</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By NAIRI, Inc.</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>439798</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Spouse</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares sold to Viacom Inc. (Viacom) pursuant to a previously disclosed agreement among NAIRI, Inc. (NAIRI), National Amusements, Inc. (NAI) and Viacom, pursuant to which NAIRI and NAI participate in Viacom's stock repurchase program on a pro-rata basis.</footnote>
        <footnote id="F2">Calculated in accordance with the terms of the agreement referred to in footnote 1.</footnote>
        <footnote id="F3">These securities are owned directly by NAIRI, Inc. (NAIRI), but may also be deemed to be beneficially owned by (1) NAIRI's parent corporation, National Amusements, Inc. (NAI) and (2) Sumner M. Redstone, who is the controlling stockholder of NAI.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Michael D. Fricklas, Attorney-in-Fact for Sumner M. Redstone</signatureName>
        <signatureDate>2008-05-09</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Richard Sherman, Vice President</signatureName>
        <signatureDate>2008-05-09</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Richard Sherman, Vice President</signatureName>
        <signatureDate>2008-05-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----