-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 KE2n9U/TmQWFniyjBEJRZxopx8S8N/IEUuMjQ2ZNaSpqdck20mM3SpFn17b2df8t
 EMru6Cae+wuOMqEKWQlPQQ==

<SEC-DOCUMENT>0001162886-08-000009.txt : 20081103
<SEC-HEADER>0001162886-08-000009.hdr.sgml : 20081103
<ACCEPTANCE-DATETIME>20081103161546
ACCESSION NUMBER:		0001162886-08-000009
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20081029
FILED AS OF DATE:		20081103
DATE AS OF CHANGE:		20081103

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BROADCAST INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000740726
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		IRS NUMBER:				870395567
		STATE OF INCORPORATION:			UT
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		7050 UNION PARK AVENUE, #600
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84047
		BUSINESS PHONE:		801-562-2252

	MAIL ADDRESS:	
		STREET 1:		7050 UNION PARK AVENUE #600
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84047

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LASER CORP
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			COCHRAN KIRBY D
		CENTRAL INDEX KEY:			0001360004

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13316
		FILM NUMBER:		081157694

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		310-385-5970

	MAIL ADDRESS:	
		STREET 1:		9595 WILSHIRE BLVD, SUITE PH 1000
		CITY:			BEVERLY HILLS
		STATE:			CA
		ZIP:			90212
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-10-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000740726</issuerCik>
        <issuerName>BROADCAST INTERNATIONAL INC</issuerName>
        <issuerTradingSymbol>bcst</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001360004</rptOwnerCik>
            <rptOwnerName>COCHRAN KIRBY D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>9595 WILSHIRE BLVD, SUITE PH 1000</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BEVERLY HILLS</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90212</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Broadcast International, Inc.</value>
            </securityTitle>
            <transactionDate>
                <value>2008-10-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>25000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.4</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>225000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>James Solomon</signatureName>
        <signatureDate>2008-11-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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