What's On Tonight: Idol Gives Back, Pussycat Dolls, Top Chef

• At 7:30, FOX has the "Idol Gives Back" American Idol special.
• At 8, CBS has a new Big Brother, then episodes of Criminal Minds and CSI: NY.
• NBC has a new Deal Or No Deal at 8.
• The CW has new episodes of America's Next Top Model and Pussycat Dolls.
• HGTV has a new Designed To Sell at 8, then new episodes of Get It Sold, Deserving Design, Design on a Dime, and House Hunters.
• At 9, ABC has a new Supernanny, followed by a new Primetime.
• PBS has a new American Masters at 9.
• Food Network has a new Chefography at 9, about the Food Network itself.
• Travel Channel has two new episodes of John Ratzenberger's Made in America at 9.
• Also at 9: Sci-Fi has a new Ghost Hunters, followed by a new Destination Truth.
• At 10, Comedy Central has a new South Park, then a new Lewis Black's Root of All Evil.
• There's a new Top Chef on Bravo at 10.
• Spike has a new Ultimate Fighter at 10.

Check your local TV listings for more.