Running out the clock
In American football, each quarter of a game is measured with a 15-minute game clock, or 12-minute clock in many high school football codes and the German Football League. A team in possession of the lead and the ball will attempt to use up as much of the game clock as possible in order to bring the game to an end more quickly, thus denying the opposition another chance on offense.
National Football League on television
If the doubleheader network's games all finish before 7:30 ET, it is supposed to conclude the post-game show within 10 minutes to protect NBC's pre-game show. If any games finish after 7:30, the post-game program can run until 8:00 ET. However, this restriction seems to apply to game footage only; on several occasions Fox has run its post-game offering to 8:00, despite all games ending before 7:30, by airing only panel discussions and interviews in the latter portion of the show. On the other hand, CBS rarely airs any post-game show after its doubleheaders or 4:05 single-games. This is because "60 Minutes" is one of its signature shows, and CBS makes every effort to start it as close to 7:00 or 7:30—its traditional airtime—as possible.