A change in broadcast networks for the Broncos-Vikings game in Week 13 revealed changes in the way the NFL will broadcast its games. The NFL on Monday announced that the Lions-Saints game was flexed to the Sunday night spot on NBC. The Broncos-Vikings game, which originally was on CBS, was switched to Fox at 1 p.m. ET. Also, the Colts-Patriots game, which was the scheduled Sunday night game on Dec. 4, reverts to 1 p.m. on CBS and the Ravens-Browns game was moved to 4:05 p.m. ET on CBS. The NFL couldn't leave FOX with only two early games in its doubleheader week, so it took a game from CBS who had eight, according to a league source.