Honestly that is a good question for the NFL. Why was Sunday Ticket not available on cable systems? Why are great games often blacked out in favor of a "local"

Honestly that is a good question for the NFL. Why was Sunday Ticket not available on cable systems? Why are great games often blacked out in favor of a "local" team's games (even when local may mean another state or hundreds of miles away)? Why does RedZone have a hard cutoff at 8pm even if overtime games are still in play?