What we're watching tonight:
- CBS (1080i) has NCAA Basketball Championship First Round action starting at 8 p.m.
- ABC (720p) brings Ugly Betty at 8 p.m., Grey's Anatomy at 9 p.m. and Private Practice at 10:01 p.m.
- NBC (1080i) lines up My Name is Earl at 8 p.m. with The Office at 9 p.m. followed by 30 Rock and E.R.
- Fox (720p) has Bones at 8 p.m.
- CW(1080i) has Smallville at 8 p.m. and Supernatural at 9 p.m.
- Spike (1080i) has TNA: Impact! at 9 p.m.
- History (720p) has Gangland at 9 p.m. and Warriors at 10 p.m.
- Discovery (1080i) has Treasure Quest at 10 p.m.
- A&E (720p) has The Beast at 10 p.m.
- TLC (1080i) has Street Customs at 9 p.m. and Heli-Loggers at 10 p.m.
- Speed (720p) has Bullrun at 10 p.m.
- TNT (1080i) has Lakers/Spurs at 8 p.m. and Cavaliers/Suns at 10:30 p.m.
- ESPN (720p) has World Baseball Classic action at 9 p.m.
- ESPN2 (720p) has a New York/Seattle MLS matchup at 9 p.m.