EXHIBIT 99.2 VIACOM INC., VIACOM INTERNATIONAL INC., VIACOM INTERNATIONAL SERVICES INC., AND STATE STREET BANK AND TRUST COMPANY, TRUSTEE ---------------- THIRD SUPPLEMENTAL INDENTURE DATED AS OF JULY 22, 1996 TO BE EFFECTIVE AS OF JULY 31, 1996 TO INDENTURE DATED AS OF MAY 15, 1995 AMONG VIACOM INC.,VIACOM INTERNATIONAL INC.AND THE FIRST NATIONAL BANK OF BOSTON,TRUSTEE ---------------- SENIOR DEBT SECURITIES THIRD SUPPLEMENTAL INDENTURE, dated as of July 22, 1996, to be effective as of July 31, 1996, among VIACOM INC., a Delaware corporation (the "Company"), VIACOM INTERNATIONAL INC., a Delaware corporation (the "Guarantor"), VIACOM INTERNATIONAL SERVICES INC. (the "Successor"), and STATE STREET BANK AND TRUST COMPANY, a Massachusetts trust company, as successor to The First National Bank of Boston (the "Trustee"), as Trustee to the Indenture, dated as of May 15, 1995, among the Company, the Guarantor and the Trustee, as supplemented by the First Supplemental Indenture, dated as of May 24, 1995, among the Company, the Guarantor and the Trustee and as further supplemented and amended by the Second Supplemental Indenture and Amendment No. 1, dated as of December 15, 1995, among the Company, the Guarantor and the Trustee (as amended, the "Indenture"). RECITALS WHEREAS, the Company, the Guarantor and the Trustee are parties to the Indenture, pursuant to which the Company has issued $1 billion principal amount of 7.75% Senior Notes due 2005, $350 million principal amount of 6.75% Senior Notes due 2003 and $200 million principal amount of 7.625% Senior Debentures due 2016 (the "Securities"); WHEREAS, pursuant to the Indenture the Guarantor has unconditionally guaranteed the Securities (the "Guarantees"); WHEREAS, the Guarantor and the Successor are parties to an Implementation Agreement dated as of July 24, 1995 (the "Implementation Agreement") pursuant to which the Guarantor shall convey substantially all of its assets to the Successor (the "Conveyance of Assets") and the Successor shall assume substantially all of the liabilities of the Guarantor, including liabilities in respect of the Securities (the "Assumption of Liabilities"); WHEREAS, the Guarantor and the Successor desire, pursuant to Section 901 of the Indenture, to supplement and amend the Indenture, in order to comply with Section 801 of the Indenture; WHEREAS, the Successor is a corporation validly existing under the laws of the State of Delaware; WHEREAS, the Successor has duly authorized the execution and delivery of this Third Supplemental Indenture to assume all the covenants and conditions of the Guarantor under the Guarantees and the Indenture; and WHEREAS, immediately after the consummation of the Conveyance of Assets and Assumption of Liabilities in accordance with the Implementation Agreement, no Event of Default or Default (as defined in the Indenture) shall have occurred and be continuing. NOW, THEREFORE, the Company, the Guarantor, the Successor and the Trustee covenant and agree as follows: ARTICLE A SECTION A.1. The Successor hereby assumes all the covenants and conditions of the Guarantor under the Guarantees and the Indenture; and the Successor shall succeed to, and be substituted for, and may exercise every right and power of, the Guarantor under the Indenture with the same effect as if the Successor had been named as the Guarantor therein; and the Guarantor shall be relieved of all covenants and conditions under the Guarantees and the Indenture. 2 ARTICLE B MISCELLANEOUS PROVISIONS SECTION B.1 Any notice or communication by the Trustee to the Successor is duly given if in writing and delivered in person or mailed by first-class mail to the address set forth below: Viacom International Services Inc.1515 BroadwayNew York, NY 10036Attention: Chief Financial Officer, with a copy to the Office of the General Counsel SECTION B.2. THE LAWS OF THE STATE OF NEW YORK SHALL GOVERN THIS THIRD SUPPLEMENTAL INDENTURE. SECTION B.3. This Third Supplemental Indenture may be executed in any number of counterparts, each of which when so executed shall be deemed to be an original, but such counterparts shall together constitute but one and the same instrument. IN WITNESS WHEREOF, the parties have caused this Third Supplemental Indenture to be duly executed as of the day and year first written above. VIACOM INC. /s/ Michael D. Fricklas By___________________________________ Name: Michael D. Fricklas Title: Senior Vice President Deputy General Counsel VIACOM INTERNATIONAL INC. /s/ Michael D. Fricklas By___________________________________ Name: Michael D. Fricklas Title: Senior Vice President Deputy General Counsel VIACOM INTERNATIONAL SERVICES INC. /s/ Michael D. Fricklas By___________________________________ Name: Michael D. Fricklas Title: Senior Vice President Deputy General Counsel STATE STREET BANK AND TRUST COMPANY /s/ Eric L. Donaghey By___________________________________ Name: Eric L. Donaghey Title: Assistant Vice President 3