I gave up US football years ago. I blame my defction wholly on television which resulted in the following:

1) Too much money in the game resulted in
2) Too many teams resulting in
3) A dilution of talent and
4) Free agency and
5) Too many divisions resulting in
6) Few natural rivalries.
7) The season is too long by 50% and
8) The game takes too long because of TV timeouts on top of team timeouts and
9) Machines make decisions which ought be made on the field by human beings, even with their fallibilty, and finally
10) Uniforms and cages make individual players unrecognizable...I'm almost convinced the pads cover up robots.
As a consequence I watch no NFL and few (only UClA...talk about suffering) college games.

And don't even get me started on Basketball which is a joke the way it is played these days.