Nexstar has amended its credit agreement to loosen its leverage covenants for the next 18 months. We are affirming Nexstar's ratings, including the 'B-' corporate credit rating. The rating outlook is stable, reflecting our expectation that the company will be able to maintain adequate headroom under its revised bank covenants over the next year. NEW YORK (Standard&Poor's) Oct. 19, 2009--Standard&Poor's Ratings Services said today it affirmed its ratings on Irving, Texas-based TV broadcaster Nexstar Broadcasting Group Inc., including the 'B-' corporate credit rating. The rating outlook is stable. "Our rating affirmation and stable rating outlook on Nexstar reflect our expectation that the company will be able to maintain its lease-adjusted EBITDA coverage of interest above 1.2x