FOOTBALL - The longest running primetime sports program in television history, ABC&#39;s NFL &#39;Monday Night Football,&#39; celebrates its 500th game on 11/11/02 at Invesco Field at Mile High in Denver, Colorado, in a game between the Oakland Raiders and Denver Broncos. Wearing the yellow blazers, which were identified with ABC Sports during the 1960s through the 1980s, Al Michaels (left) welcomes football great and former colleague Frank Gifford (center) to the broadcast booth. DIGITAL