Now that CFB is over, not sure what Fox is airing or could air. Seems like live sports is the best alternative to get decent ratings. Of course that's tough to do with media deals in place. Now with the NBA and NHL seasons going on they have their media deals, don't think either one with Fox tho. I think Fox does have MLB but not sure if they can put a Friday night game to try and get more viewers.
A lot of people aren't watching live tv anyways unless it's wrestling or sports, especially on a Friday night.
I did some research and found this. It's at the bottom of this article.
SD is the number 1 show on USA network easily clearing 2 and 3 combined. Which actually I had mentioned something in the AEW thread, without wrestling these networks be having some low as ratings. So for SD to beat Fox it's not the least bit surprising.