I do not believe there is anyplace at WDW that you can make a reservation, sit at a table in a restaurant and watch a football game (ESPN, while it's dedicated to watching sports, doesn't take reservations). There are several places with TVs in a bar or lounge, but no reservations can be made to do that. You could try Big River Grill, they've got TVs at the bar and the place is small. However, I don't think you are guaranteed to be seated where you can see a TV. You also can't make reservations there through Disney but you can "call ahead" if you call them directly.