What we're watching tonight:
- NBC (1080i) has the series premiere of Who Do You Think You Are? at 8 p.m.
- MyNetworkTV (720p) has WWE SmackDown at 8 p.m.
- CBS (1080i) brings Medium at 9 p.m. and Numb3rs at 10 p.m.
- Syfy (1080i) has Caprica at 9 p.m.
- History (720p) has Gangland at 9 p.m.
- Discovery (1080i) brings American Loggers at 10 p.m.
- TLC (1080i) airs What Not to Wear at 9 p.m. and Four Weddings at 10 p.m.
- Starz (1080i) has Spartacus: Blood & Sand at 10 p.m.
- Food (1080i) has The Best Thing I Ever Ate at 10 p.m.
- HBO (1080i) brings The Ricky Gervais Show at 9 p.m., The Life and Times of Tim at 9:30 p.m., Real Time with Bill Maher at 10 p.m. and Funny or Die Presents at 11:59 p.m.
- ESPN (720p) has an NBA doubleheader with Pistons/Cavaliers at 7 p.m. and Spurs /Hornets at 10:30 p.m.