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Today on TV

Joey Lawrence

Joey Lawrence

NBA playoffs: Wizards at Cavaliers (6 p.m., NBATV); Warriors at Mavericks (7:30 p.m., TNT)

Jericho (7 p.m., Ch. 2): Jericho and the neighboring town are on the verge of war.

Thank God You're Here (7 p.m., Ch. 5): Jason Alexander, Brian Posehn, Jane Lynch and Harland Williams are the scheduled guests.

American Idol (7 p.m., Ch. 13): This two-hour installment, titled "Idol Gives Back," is loaded with stars. Scheduled to appear are past winners Kelly Clarkson and Carrie Underwood, Bono, Michael Buble, Celine Dion, Brad Garrett, Hugh Grant, Josh Groban, Teri Hatcher, Keira Knightley, Annie Lennox, Pink, Daniel Radcliffe, Rascal Flatts, Gwen Stefani and Forest Whitaker. The event is designed to raise awareness and funds for organizations that provide relief programs to help children and young people in extreme poverty in America and Africa.

Crossing Jordan (8 p.m., Ch. 5): Jordan returns to work and immediately jumps into a big murder case.

CSI: NY (9 p.m., Ch. 2): That nice Joey Lawrence is all grown up now (he's 31) and, while he's not a serial killer, he is playing one on TV. His character is released from prison on a technicality — and do you really want a serial killer on the loose?

Lost (9 p.m., Ch. 4): Who is the father of Sun's unborn child?

Medium (9 p.m., Ch. 5): Allison's led to a missing woman.