In the NFL, any broadcaster that has a signal that hits any area within a 75-mile (120 km) radius of an NFL stadium may only broadcast a game if that game is a road game, or if the game sells-out 72 hours or more before the start time for the game.[5] If sold out in less than 72 hours, or is close to being sold out by the deadline, the team can sometimes request a time extension. Furthermore, broadcasters with NFL contracts are required to show their markets' road games. These requirements based on attendance mean that as a general rule, fans of teams with winning records will get to see all of their teams games on television, while fans of sub-.500 teams may only see the road games on television, unless their team routinely sells out anyway (which many do). Sometimes if a game is very close to selling out, but not quite there, a broadcaster with rights to show the nearly sold out game will buy the remaining tickets (and give them to local charities) so it can broadcast the game (usually, this would involve no more than a few hundred tickets because of cost). Other teams elect to close off sections of their stadium, but cannot sell these tickets for any game that season if they choose to do so.[6] As a result, if the home team's game is a Sunday day game both networks can air only one game each in that market. (Until 2001, this rule applied whether or not the game was blacked out, however, this was changed because some markets virtually never aired doubleheaders as a result.) Usually, but not always, when each network can show only one game each in a market, the two stations work out between themselves which will show an early game and which will show a late game. This only affects the primary market, and not markets in a 75-mile (121 km) radius, which always get a doubleheader each Sunday.
i guess its a 75 mile radius....this is the first time i heard about this...i thought it was strictly citys....