Now, on to flexing's rules. The NFL makes the game-swapping decisions. But CBS and Fox can each protect five of their regularly-scheduled Sunday afternoon games, but not two on the same weekend — and none for season-ending Week 17.
Unfortunately for CBS and Fox, they had to make those picks in early October. And that, says Fox Sports president Ed Goren, make things "very, very difficult for Fox and CBS — it puts a lot of pressure on us."
NBC has more flexibility in flexing: Its game change can come just 12 days in advance and six days before Week 17.
There's more. Only three NFL teams can appear as many as six times in primetime — on NBC, ESPN or the league's own NFL Network — and no team can appear more than four times on NBC. And NBC can't pick up games already slated for primetime on ESPN or the NFL Network.