What we're watching tonight:
  • Fox (720p) airs the NASCAR Sprint Cup Southern 500 @ Darlington at 7 p.m.
  • ABC (720p) has NBA Playoffs action with Cavaliers/Hawks at 8 p.m.
  • Travel (1080i) airs Today Celebrates America with Samantha Brown at 9 p.m. and the season premiere of Samantha Brown's Great Weekend at 10 & 10:30 p.m.
  • HBO (1080i) airs bowing with Dawson/Tarver II and the Pacquiao/Hatton replay at 9:30 p.m.
  • Cinemax (1080i) presents The Strangers at 10 p.m.
  • Versus (1080i) has Pittsburgh/Washington at 7 p.m. and Chicago/Vancouver at 10:30 p.m.
  • ESPNU (720p) brings Duke/Navy Lacrosse at 7:30 p.m.

AT&T, Verizon swap wireless markets