What we're watching tonight:
- CBS (1080i) brings the season finale of The Big Bang Theory at 8 p.m., How I Met Your Mother at 8:30 p.m., Two and a Half Men at 9 p.m., Rules of Engagement at 9:30 p.m. and CSI: Miami at 10 p.m.
- Fox (720p) brings the season finale of House at 8 p.m. and 24 at 9 p.m.
- NBC (1080i) has Medium at 9 & 10 p.m.
- CW (1080i) brings Gossip Girl at 8 p.m. and One Tree Hill at 9 p.m.
- ABC (720p) has Dancing With the Stars at 8 p.m. and the season finale of Castle at 10:02 p.m.
- Travel (1080i) has Dhani Tackles the Globe at 9 p.m.
- ABC Family (720p) has Greek at 8 p.m.
- USA (1080i) has WWE: Raw at 9 p.m.
- History (720p) brings Ax Men at 10 p.m.
- Discovery (1080i) has Weaponizers at 9 p.m. and Doing Da Vinci at 10 p.m.
- TLC (1080i) brings the season finale of Little People, Big World at 8 & 8:30 p.m., then Table for 12 at 9 p.m.
- HBO (1080i) continues The Alzheimer's Project at 7 & 8 p.m.
- ESPN (720p) has baseball with Braves/Mets at 7 p.m.
- TNT (1080i) doubles up on NBA Playoffs action with Cavaliers/Hawks at 7 p.m. and Nuggets/Mavericks at 9:30 p.m.
- Versus (1080i) airs NHL Playoffs hockey with Washington/Pittsburgh at 7 p.m. followed by Chicago/Vancouver