Regional sports broadcasters have become a big source of revenue for local teams. Pictured, the Arizona Diamondbacks play a game against the Oakland Athletics on March 10, 2015 in Mesa, Arizona. (Christian Petersen/Getty Images)
If you’ve been watching March Madness, you’ve probably been watching on CBS, TNT, TBS or Tru-TV. Those networks have the TV rights to the games until 2024.