What we're watching tonight:
- ABC (720p) has the series premiere of Flash Forward at 8 p.m. and the season premiere of Grey's Anatomy at 9 p.m.
- Fox (720p) has Bones at 8 p.m. and Fringe at 9 p.m.
- CBS (1080i) has Survivor at 8 p.m. and the season premieres of CSI at 9 p.m. and The Mentalist at 10 p.m.
- NBC (1080i) brings Saturday Night Live Weekend Update Thursday at 8 p.m., Parks & Recreation at 8:30 p.m., The Office at 9 p.m. and Community at 9:30 p.m.
- CW (1080i) airs The Vampire Diaries at 8 p.m. and Supernatural at 9 p.m.
- WGN (1080i) has WWE Superstars at 8 p.m.
- History (720p) has Marked at 9 p.m.
- Spike (1080i) has TNA! Impact at 9 p.m.
- TLC (1080i) has L.A. Ink at 10 p.m.
- FX (720p) has It's Always Sunny in Philadelphia at 10 p.m.
- ESPN (720p) has Mississippi/South Carolina college football at 7:30 p.m.