 In 2014, a series of changes to the broadcast contracts freed CBS from its obligation to carry an AFC team; by 2018, the last vestiges of conference ties to the Thanksgiving games were eliminated (in practice, games on Fox remain all-NFC contests).Since teams playing on Thanksgiving have worn throwback uniforms on numerous occasions.In some years (namely 2002), it extended to nearly all games of the weekend, and in some cases also involved classic field logos at the respective stadiums.