NBA playoffs: Mavericks at Hornets (5 p.m., TNT); Raptors at Magic (5:30 p.m., NBATV); Suns at Spurs (7:30 p.m. TNT)

NCIS (7 p.m., Ch. 2): Jenny is suspected in the murder of an arms dealer.

Nova (7 p.m., Ch. 7): Tom and Ray Magliozzi — the always-entertaining hosts of NPR's Car Talk — host this look at The Car of the Future. Actually, they look at various possibilities for cars of the future.

American Idol (7 p.m., Ch. 13): The six finalists perform Andrew Lloyd Webber songs.

Dancing With the Stars (8 p.m., Ch. 4): Another team is eliminated.

Boston Legal (9 p.m., Ch. 4): Alan argues a case before the Supreme Court.

Law & Order: SVU (9 p.m., Ch. 5): A football star is suspected of murder.

The Riches (11 p.m., FX): Wayne struggles to regain Dahlia's trust.