This weekend on TV

NFL draft (10 a.m., ESPN and NFL Network): Hours of coverage.

NBA playoffs: Pistons at Magic (1 p.m., TNT); Cavaliers at Wizards (3:30 p.m., TNT); Spurs at Nuggets (6 p.m., ESPN); Rockets at Jazz (8:30 p.m., Ch. 14 and ESPN)

Robin Hood (7 and 10 p.m., BBC America): A medieval chemist comes up with explosives.

Cars (10 p.m. Saturday; 10:50 a.m. Sunday, Starz): 2006 animated feature. (Rated G)

Sunday on TV

NFL draft (9 a.m., ESPN and NFL Network): Hours of coverage.

NBA playoffs: Bulls at Heat (11 a.m., Ch. 4); Suns at Lakers (1:30 p.m., Ch. 4); Raptors at Nets (5:30 p.m., TNT); Mavericks at Warriors (8 p.m., TNT)

King of the Hill (6 p.m., Ch. 13): Bill gets addicted to a video game in this hourlong episode.

Amazing Race: All-Stars (7 p.m., Ch. 2): After two non-elimination shows in a row, one of the four remaining teams will definitely be ousted. (The season finale airs next week.) And Eric and Danielle have to stop complaining because other teams used a "yield" on them, forcing them to pause in the race. It's not dirty play; it's one of the rules! You're acting like whiny brats!

Extreme Makeover: Home Edition (7 p.m., Ch. 4): Rebuilding a home for a family that took in five orphans.

The Simpsons (7 p.m., Ch. 13): Bart leads his Little League team to the championship game.

Nature (7 p.m., Ch. 7): Part 2 of "Dogs That Changed the World"

Cold Case (8 p.m., Ch. 2): A nurse confesses to six mercy killings.

Desperate Housewives (8 p.m., Ch. 4): Will Susan choose between Mike and Ian? And how did that body get in Mrs. McClusky's freezer?

Without a Trace (9 p.m., Ch. 2): A divorce-court judge disappears.

Brothers & Sisters (9 p.m., Ch. 4): Sarah finds out about her husband and half-sister; there's a tragic accident.

The Sopranos (10 p.m., HBO): Tony's string of bad luck continues.

Entourage (11 p.m., HBO): Pauly Shore is perfectly cast as the incredibly annoying host of a "Punk'd"-like show.