https://www.si.com/tech-media/2017/12/10/college-footballs-declining-ratings-2017-media-circus

Only Fox and its sister cable network FS1 saw average viewership go up this season, while CBS, ABC, NBC and ESPN all saw their college football ratings drop.

How to fix college football ratings: Coordination, scheduling, and an eight-team playoff (http://awfulannouncing.com/ncaa/fix-college-football-ratings-coordination-scheduling-eight-team-playoff.html)

Improving college football's ratings is simple: have marquee games in different timeslots.