Tuesday on TV

NBA playoffs: Heat at Celtics (5 p.m., NBATV); Bulls at Cavaliers 6 p.m., TNT); Spurs at Mavericks (7:30 p.m., NBATV); Thunder at Lakers (8:30 p.m., TNT).

NCIS (7 p.m., Ch. 2): A polygraph specialist's moonlighting leads to murder.

Dancing With the Stars (7 p.m., Ch. 4): Another pair is eliminated.

The Biggest Loser (7 p.m. Ch. 5): The remaining seven contestants head to Dallas.

American Idol (7 p.m., Ch. 13): The remaining six contestants perform.

90210 (7 p.m, Ch. 30): Ryan O'Neal — who apparently needs the work — guest stars as Teddy's father.

NCIS: Los Angeles (8 p.m., Ch. 2): An infamous socialite is connected to a Navy officer's death.

Glee (8 p.m., Ch. 13): April (Kristin Chenoweth) returns; Kurt sets his father up with an unexpected woman.

The Good Wife (9 p.m., Ch. 2): Alicia (Julianna Margulies) takes on her former boss in court; Peter uses religion to help with his appeal.

V (9:02 p.m., Ch. 4): Ryan tells Val he's a visitor; the lives of the Fifth Column are in danger.

Parenthood (9 p.m., Ch. 5): Kristina goes back to work, leaving Adam in charge of the house.

Frontline (9 p.m., Ch. 7): Parents take on health officials over the safety of childhood vaccines.

Justified (11 p.m., FX): Raylan comes to the rescue when Ava is in danger.