The Big 12 announced this week there are 256 possibilities to determine who will play in the league title game.

HOUSTON — After a chaotic end to the regular season in college football, the matchups are set for championship week. Here’s a look at the showdowns coming up in the Power Four and Group of Five. All championship games are on Dec. 7 except in the American Athletic, Conference USA and Mountain West, which will be played Dec. 6.

The College Football Playoff has used a selection committee since its first season in 2014, and that hasn’t changed. A 13-member committee, which has announced its rankings weekly since November, will set the bracket when it unveils the final 12-team rankings on Dec. 8.