What we're watching tonight:
- ABC (720p) presents a new Notes from the Underbelly at 9:30 and October Road at 10 p.m.
- NBC has a new American Gladiators at 8 p.m. and a new episode of Medium at 10 p.m.
- Fox (720p) is airing part two of the debut of Terminator: The Sarah Connor Chronicles 9 p.m.
- ESPN2-HD (720p) has action from the Australian Open at 9 p.m.
- HDNet Movies (1080i) is airing Memento at 8:15 p.m.