What we're watching tonight:
- Fox (720p) has House at 8 p.m. and 24 at 9 p.m.
- CW (1080i) airs One Tree Hill at 8 p.m. and Gossip Girl at 9 p.m.
- ABC (720p) has Dancing with the Stars at 8 p.m., Romantically Challenged at 9:30 p.m. and Castle at 10 p.m.
- CBS (1080i) has How I Met Your Mother at 8 p.m., Rules of Engagement at 8:30 p.m., The Big Bang Theory at 9 p.m. and CSI: Miami at 10 p.m.
- NBC (1080i) has Chuck at 8 p.m., Trauma at 9 p.m. and Law & Order at 10 p.m.
- Spike (1080i) has TNA: Impact! at 8 p.m.
- USA (1080i) has WWE: Raw at 9 p.m.
- TLC (1080i) has Little People, Big World at 8 & 8:30 p.m., the series premiere of Best Food Ever at 9 p.m. and Ultimate Chili Challenge at 10 p.m.
- Showtime (1080i) has Nurse Jackie at 10 p.m. and The United States of Tara at 10:30 p.m. and The Real L Word at 11 p.m.
- ABC Family (720p) has 10 Things I Hate About You at 8 p.m.
- Food Network (1080i) has Diners, Drive ins and Dives at 10 p.m.
- TNT (1080i) has NBA Playoffs action with Celtics/Cavaliers at 8 p.m. and Spurs/Suns at 10:30 p.m.
- Versus (1080i) has NHL Playoffs action with Flyers/Bruins at 7 p.m. followed by Canucks/Blackhawks