 An idiosyncrasy in the NFL's current scheduling formula, which has been in effect in its basic form since 2002, effectively prevented teams from the AFC North from playing the Lions or Cowboys on Thanksgiving, as the formula had the AFC North playing in Dallas or Detroit in years when the other team was slated to play the AFC game on Thanksgiving.These teams, under the television contracts in place at the time, could only play in the third (night) game.With the changes in the scheduling practices in 2014, the division is no longer barred from participating in the game (since both CBS and Fox can choose teams from either conference; because of the idiosyncrasy, the AFC North team would, if chosen, always play on Fox).