"90210" (7 p.m., WGN-Channel 9): The CW takes a stab at street cred with guest stars Pharrell and Samantha Ronson.
"V" (7 p.m., WLS-Channel 7): The aliens come in peace. What a relief.
"The Biggest Loser" (7 p.m., WMAQ-Channel 5): Field trip to Washington, D.C., complete with a weigh-in at the Lincoln Memorial. Talk about pressure.
"Secret Celebrity" (7 p.m., E!): Nick Lachey and Kim Kardashian -- E! describes them as "Hollywood heavyweights" -- disguise themselves with prosthetics to find out what people really think of them. I'll let them in on a secret: Most people don't think of them at all.
"Kathy Griffin: Balls of Steel" (8 p.m., Bravo): The comeditrix has no mercy, potentially hurting the feelings of the Gosselins, Britney Spears, Miley Cyrus and Barbara Walters.
"The Good Wife" (9 p.m., WBBM-Channel 2): Conjugal visit with Mr. Big!