What we're watching tonight:
- ABC (720p) has the season premiere of Dancing With the Stars at 8 p.m. and the series premiere of Castle at 10:02 p.m.
- NBC (1080i) has Chuck at 8 p.m. followed by Heroes and Medium plus Late Night with Jimmy Fallon with a special guest at 12:35 a.m.
- Fox (720p) has House at 8 p.m. and 24 at 9 p.m.
- CBS (1080i) lines up 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.
- ABC Family (720p) has The Secret Life of the American Teenager at 8 p.m. and Kyle XY at 9 p.m.
- Discovery (1080i) airs Destroyed in Seconds at 8 & 8:30 p.m. followed by Hard Time at 9 p.m.
- History (720p) brings the series premiere of Battles BCat 9 p.m. and Ax Men at 10 p.m.
- TLC (1080i) brings Little People, Big World at 8 & 8:30 p.m. followed by Jon & Kate Plus 8
- TNT (1080i) has Saving Grace at 10 p.m.
- USA (1080i) has WWE: Raw at 9 p.m.
- Versus (1080i) airs Rangers/Hurricanes NHL action at 7 p.m.
- ESPN (720p) has St. Mary's/Gonzaga for the West Coast Championship at 9 p.m.