Wednesday on TV

NBA playoffs: Bobcats at Magic (5 p.m., TNT); Spurs at Mavericks (7:30 p.m., TNT)

New Adventures of Old Christine (7 p.m., Ch. 2): Christine contemplates making a big change.

Mercy (7 p.m., Ch. 5): Chloe tracks down a patient with potentially fatal blood disease.

Through a Dog's Eyes (7 p.m., Ch. 7): Training dogs to assist people with a variety of disabilities.

Idol Gives Back (7 p.m., Ch. 13): Among those scheduled to perform in this charity event are Alicia Keys, Carrie Underwood, the Black Eyed Peas and Annie Lennox. Oh, and another contestant is eliminated.

Accidentally on Purpose (7:30 p.m., Ch. 2): Billie goes into labor as Zack is hauled off to jail.

Law & Order: SVU (9 p.m., Ch. 5): A murder victim had been trying to expose questionable practices at a meat-packing plant.

In Plain Sight (11 p.m., USA): An FBI informant refuses protection — which turns out to be a really bad idea.