What's On Tonight: The Office, ER, Penn & Teller, This American Life

• At 8, ABC has an Ugly Betty clip show, followed by a Grey's Anatomy clip show and the premiere of Notes From The Underbelly.
• CBS has a new Survivor at 8, then new episodes of CSI and Shark.
• NBC has new episodes of My Name Is Earl, The Office, 30 Rock, Scrubs, and ER.
• There's a new Are You Smarter Than A Fifth Grader? on FOX at 8.
• At 9, The CW has The BRICK Awards.
• TLC has a new American Chopper at 9.
• At 10, HGTV has a new Throwdown with Bobby Flay, then a new Ace of Cakes.
• Showtime has a new Penn & Teller's Bullshit! at 10, then a new episode of This American Life.
• At 10:30, Comedy Central has a new Showbiz Show with David Spade.

Check your local TV listings for more.