I use the last full season 2019 numbers from SportsMediaWatch.com
I took out games involving OU/UT and UCLA/USC (largest PAC 12 market), conference games only, this is the average
On ABC/Fox, not only BYLR-OKLA ST was on one of the two, the PAC 12 had 6.
PAC 12 - 2,825,000
Big 12 - 2,230,000
ESPN Big 12 had 6 and the PAC 12 had 7 (all but one starting at 8:00 PM or later)
PAC 12 - 1,541,429
Big 12 - 989,667
The ORE-STAN game started at 5:00 had a 1,370,000. The largest Big 12 number on ESPN was
IA ST-BYLR that started at 1:30 - 1,250,000
FS1 Big 12 had 11 and the PAC 12 had 8 (all but one PAC 12 started at 8:00 PM or later)
PAC 12 - 542,125
Big 12 - 480,273
The ASU-ORE ST that started at 5:30 had a 488,000 number. That was more than 6 of the 11 Big 12 games got
The PAC 12 was not on ESPN2, Big 12 was on 5 times averaged 536,600
CU vs WSU was on ESPNU (no Big 12 was) and had a 271,000
I took out games involving OU/UT and UCLA/USC (largest PAC 12 market), conference games only, this is the average
On ABC/Fox, not only BYLR-OKLA ST was on one of the two, the PAC 12 had 6.
PAC 12 - 2,825,000
Big 12 - 2,230,000
ESPN Big 12 had 6 and the PAC 12 had 7 (all but one starting at 8:00 PM or later)
PAC 12 - 1,541,429
Big 12 - 989,667
The ORE-STAN game started at 5:00 had a 1,370,000. The largest Big 12 number on ESPN was
IA ST-BYLR that started at 1:30 - 1,250,000
FS1 Big 12 had 11 and the PAC 12 had 8 (all but one PAC 12 started at 8:00 PM or later)
PAC 12 - 542,125
Big 12 - 480,273
The ASU-ORE ST that started at 5:30 had a 488,000 number. That was more than 6 of the 11 Big 12 games got
The PAC 12 was not on ESPN2, Big 12 was on 5 times averaged 536,600
CU vs WSU was on ESPNU (no Big 12 was) and had a 271,000