What we're watching tonight:
- Fox (720p) has the season premiere of American Idol at 8 p.m.
- CW (1080i) lines up 90210 at 8 p.m. and Privileged at 9 p.m.
- ABC (720p) has Scrubs at 9 & 9:30 p.m.
- CBS (1080i) lines up NCIS at 8 p.m., The Mentalist at 9 p.m. and Without a Trace at 10 p.m.
- Discovery (1080i) brings Dirty Jobs at 9 p.m. followed by Wreckreation Nation
- Sci Fi (1080i) tosses in ECW at 9 p.m.
- History (720p) airs The Universe at 9 p.m.
- TNT (1080i) has Leverage at 10 p.m.
- FX (720p) has Nip/Tuck at 10 p.m.
- ESPN (720p) doubles up on college basketball with Indiana/Ohio State at 7 p.m. and Kentucky/Tennessee at 9 p.m.