EXHIBIT 3.31 CERTIFICATE OF AMENDMENT OF CERTIFICATE OF INCORPORATION OF NORTH TEXAS BROADCASTING, INC. IT IS HEREBY CERTIFIED THAT: 1. The name of the corporation (hereinafter called the "corporation") is North Texas Broadcasting, Inc. 2. The certificate of incorporation of the corporation is hereby amended by striking out Article I thereof and by substituting in lieu of said Article the following new Article: ARTICLE I. NAME The name of the corporation is North Texas Broadcasting Corporation. 3. The amendment of the certificate of incorporation of the corporation herein certified has been duly adopted, pursuant to the provisions of Section 242 of the General Corporation Law of the State of Delaware. Signed and attested to on December 15, 1994. /s/ Donald Guthrie Donald Guthrie, Vice President Attest: /s/ Gayle C. Toney Gayle C. Toney, Assistant Secretary