CBSN is not tracked by Nielsen and therefore is not reported by Sports Media Watch. Since USU games are mostly shown on CBSN, it is impossible to monitor its viewership. I substituted BSU, whose games are primarily on one of the ESPN platforms.
Of the conference networks, only BTN is tracked. BYUtv is not tracked. The smaller networks are not tracked.
All numbers are in millions of viewers
BYU
8/31 vs Utah 1.68
9/6 vs Tennessee 1.6
9/14 vs USC 2.67
9/21 vs Washington 1.571*
10/19 vs BSU 0.571
11/2 vs USU 0.592
111/9 vs Liberty 0.166
12/24 vs Hawai'i (Hawai'i Bowl) 2.43
Total 11.280
BSU
8/31 vs FSU 1.19
9/6 vs Marshall 1.38
9/14 vs Portland State 0.39
9/20 vs AFA 0.895
10/12 Hawai'i 0.555
10/19 vs BYU 0.571
11/9 vs Wyoming 1.18
11/6 vs New Mexico 0.224
12/7 vs Hawai'i (CCG) 0.55
12/21 vs Washington (Las Vegas Bowl) 2.64
Total 9.575
Utah
8/31 vs BYU 1.68
9/20 vs USC 1.42
9/29 vs Washington State 0.677
10/26 vs California 0.251
11/2 vs Washington 1.96
11/16 vs UCLA 1.52
11/23 vs Arizona 0.533
11/30 vs Colorado 2.43
12/6 vs Oregon (CCG) 5.86
12/31 vs Texas (Alamo Bowl) 5.61
Total 21.941
* This was a split regional broadcast. In the east, the game was UCF vs Pitt. The ESPN feed had a total of 2.55, for both games and ESPN2 has 0.593. I divided the viewers equally between both broadcasts.