Don't know if it would do that. The spread out nature of American Television made the blackout rules easy to implement. They also have the natural converse. Away games should always been shown live on TV in the locality. There are less regional broadcasters in England, and more crossover. In America there are big, big areas where only one team has more than expat support. Your local team could be 200 miles away, and you'd have crowds going to bars to watch games together. Blackout areas would want to be much smaller in England. How would people feel about the City game being blacked out because Wigan, Blackburn, Everton, Bolton or Stoke away couldn't sell out. Despite having Manchester to ourselves, blackouts at away matches could still affect about half the away fixtures for a 75 mile limit.
If you think that Sunday Ticket has been running since 1994, the current Sky TV deal means that football will be at least 20 years behind before anything happens.
some details of just how neglected we areThe other thing is that the no promotion/relegation system in American Football means that there's a huge permanent demand for a small number of teams. Quite simply, if fans in Phoenix or Kansas City don't keep bringing the crowd, another city will be happy to have the team move over. So much so that they'd build them an 80k stadium for free. When you can do that, you can make all sorts of rules.