Last week there were approximately 10 million viewers watching games in the early time slot. This week, other games in that spot are (with ballpark viewers you could expect them to get):
Kentucky @ Ole Miss on ABC - 2.5M viewers
Minnesota @ Michigan on FOX - 4M viewers
Oklahoma St. @ Kansas St. on ESPN - 2M viewers
Navy @ UAB on ESPN2 - 500k viewers
South Florida @ Tulane on ESPNU - <100k viewers
Northern Illinois @ NC State on the CW - 400k viewers
Buffalo @ UConn on CBSSN - <100k viewers
And then various programming on regional networks (ACC Network, Peacock, Big Ten Network)
If BYU were to draw around 500k viewers (Arizona St. @ Texas Tech drew 410k last week on FS1), that would bring the total viewership numbers for the above to around 10 million - which is about the same number of total viewership for that window as last week.