There was a sports barr out here that got sued by the NFL for having a tall antenna that pulled in Raiders games from outside the blackout area.
It was inside but near the blackout line. They are now out of business. You just don't want to mess with the NFL. The public just can't keep it's mouth shut about getting a good deal.
Nowdays digital broadcasts are UHF which just doesn't have the range of the VHF that used to be used. UHF is line of sight whereas VHF is 4/3rd's line of sight. That is more likely the problem.