EXHIBIT 4.6SUPPLEMENTAL INDENTURE          Supplemental Indenture (this “*Supplemental Indenture*”), dated as of March 10, 2005,among WAPA America, Inc., a Delaware corporation and WWHO Broadcasting, LLC, a Delaware limitedliability company (each a “*Guaranteeing Subsidiary*”), each of which is a direct or indirect,wholly-owned subsidiary of LIN Television Corporation (or its permitted successor), a Delawarecorporation (the “*Company*”), the Company and The Bank of New York, trustee under the Indenturereferred to below (the “*Trustee*”).W I T N E S S E T H          WHEREAS, the Company has heretofore executed and delivered to the Trustee an indenture (the“*Indenture*”), dated as of May 12, 2003, providing for the issuance of an aggregate principal amountof up to $200 million of 6 1/2% Senior Subordinated Notes due 2013, Series A and 6 1/2% SeniorSubordinated Notes due 2013, Series B (the “*Notes*”);          WHEREAS, the Indenture provides that under certain circumstances each Guaranteeing Subsidiaryshall execute and deliver to the Trustee a supplemental indenture, pursuant to which theGuaranteeing Subsidiary shall unconditionally guarantee all of the Company’s Obligations under theNotes and the Indenture on the terms and conditions set forth herein (the “*Subsidiary Guarantee*”);and          WHEREAS, pursuant to Section 10.06 of the Indenture, the Trustee is authorized to execute anddeliver this Supplemental Indenture.          NOW THEREFORE, in consideration of the foregoing and for other good and valuableconsideration, the receipt of which is hereby acknowledged, each Guaranteeing Subsidiary and theTrustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notesas follows:     1.Capitalized Terms. Capitalized terms used herein withoutdefinition shall have the meanings assigned to them in the Indenture.     2.Agreement to Guarantee. Each Guaranteeing Subsidiary herebyagrees to jointly and severally guarantee to each Holder of a Note authenticated and delivered bythe Trustee and to the Trustee and its successors and assigns, the Notes or the obligations of theCompany hereunder or thereunder, on a senior subordinated basis pursuant to, and in accordancewith, the terms and conditions of Article Eleven of the Indenture and to otherwise assume theobligations and rights as a Guarantor under the Indenture.     3.Releases. Upon receipt by the Trustee of a request by theCompany for a release of a Guaranteeing Subsidiary of its obligations under Article Eleven of theIndenture, which request shall be accompanied by an Officers’ Certificate certifying as to
 

 
compliance with Section 11.03 of the Indenture, the Trustee shall deliver an appropriateinstrument evidencing such release.     4.No Recourse Against Others. No past, present or future director,officer, employee, incorporator, stockholder or agent of the Guaranteeing Subsidiary, as such,shall have any liability for any obligations of the Company or any Guaranteeing Subsidiary underthe Notes, any Subsidiary Guarantees, the Indenture or this Supplemental Indenture, or for anyclaim based on, in respect of, or by reason of, such obligations or their creation. Each Holder ofthe Notes by accepting a Note waives and releases all such liability. The waiver and release arepart of the consideration for issuance of the Notes.     5.Governing Law. THE INTERNAL LAW OF THE STATE OF NEW YORK SHALLGOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE WITHOUT GIVING EFFECT TO APPLICABLEPRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHERJURISDICTION WOULD BE REQUIRED THEREBY.     6.Counterparts. The parties may sign any number of copies of thisSupplemental Indenture. Each signed copy shall be an original, but all of them together representthe same agreement.     7.Effect of Headings. The Section headings herein are forconvenience only and shall not affect the construction hereof.     8.The Trustee. The Trustee shall not be responsible in any mannerwhatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or foror in respect of the recitals contained herein, all of which recitals are made solely by eachGuaranteeing Subsidiary and the Company.[*Remainder of page Intentionally Left Blank*]
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     IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be dulyexecuted and attested, all as of the date first written above.        WAPA America, Inc.         By: /s/ Vincent L. Sadusky       Name: