I remember a time when going to the games was big deal and Universities set the kickoff time. If TV wanted to broadcast the game, they made sure they were set up in time to cover it at the assigned time. For commercial breaks, TV people had to be clever about when to break from the action so they wouldn't miss any of the play on the field. They covered the game, instead of fitting the game within their coverage.
The problem is any advertising ideas are always seen as extra ways to make money. For example, in soccer you have the field banners flashing advertising all game. It helps offset the fact the action is continual and they can't break for advertisements on a regular basis. If someone introduced something like that for football, or limited advertising on player jersey, etc. it would only be seen as a way for MORE money, not a replacement for maximum commercial breaks if they got rid of the red hat.
Slowly but surely the spectator stadium game experience has been poisoned at the same time the TV coverage and technology has improved. Now everyone seems to wonder why people don't go to games anymore. But, concessions at most stadiums remain at premium prices and donaton/ticket prices remain high to prey on the same dwindling set of hold out season ticket buyers.
Today's full stadium breeds tomorrow's TV interest. But, what happens if you poison today's stadium attendance to the point generations of fans are lost?