NFL Sunday Morning Games in LA

I have UVerse 300 in Los Angeles and for some reason both NFL games are not available on CBS and Fox. They carry on one channel, and the other has Paid Programming. It wasn't always that way, and in the past couple of weeks it switches availability -- 2 weeks ago the CBS game played while Fox was off; last week and this week CBS is unavailable while the Fox game is broadcasting.

What is going on? I don't require much as far as TV programming is concerned. But don't mess with my sports channels during football season!