They've only done that twice before, in 1990 and 2007. If Baylor wins tonight, it will be 4 teams.
1990
Miami (10-2)
Wyoming (9-4)
CSU (9-4)
2007
Utah (9-4)
UNM (9-4)
AFA (9-4)
2024
SMU (11-3)
Colorado (9-4)
Kansas St. (9-4)
Baylor? (would be 9-4 if they win vs LSU)