What we're watching tonight:
- CBS (1080i) brings Ghost Whisperer at 8 p.m., Medium at 9 p.m. and the series premiere of Miami Medical at 10 p.m.
- MyNetworkTV (720p) has WWE SmackDown at 8 p.m.
- NBC (1080i) has Who Do You Think You Are? at 8 p.m.
- Syfy (1080i) has the spring premiere of Stargate: Universe at 9 p.m. and the season premiere of Merlin at 10 p.m.
- CW (1080i) has Smallville at 8 p.m.
- Cartoon Network (1080i) has Star Wars: The Clone Wars at 9 p.m.
- TLC (1080i) airs What Not to Wear at 10 p.m.
- Discovery (1080i) has American Loggers at 10 p.m
- Starz (1080i) has Spartacus: Blood & Sand at 10 p.m
- ESPN (720p) has an NBA doubleheader with Hawks/Cavaliers at 8 p.m. and Jazz/Lakers at 10:30 p.m.
- NFL Network (1080i) has Rush/Barnstormers arena football at 8 p.m.
- MLB Network (720p) has Athletics/Giants preseason baseball at 10:15 p.m.