Saturday's TV Highlights: 'Harry Potter and the Half-Blood Prince' on HBO
Three Rivers: A firefighter faces an organ-donation dilemma in this new episode of the medical drama (8 p.m. CBS).
Last Chance Highway: There's more pets in need of assistance, including two pit bull pups, in the debut episode of this new series (8 p.m. Animal Planet).
Unwrapped: This new installment gives you the scoop on some of your favorite ice cream flavors (10 p.m. Food).
Dads for My Daughters: Diagnosed with cancer, author Bruce Feiler enlisted a group of friends to watch over his twin girls in the event of his death, an inspiring story revisited in this new documentary special (5, 8 and 11 p.m. CNN).
Calendar Girls: Helen Mirren and Julie Walters star in this cheeky 2003 comedy (8 p.m. KTLA).
She's the Man: Amanda Bynes is just one of the guys in this 2006 comedy (8 p.m. ABC).
Dad's Home: “JAG's” David James Elliott stars in this 2010 made-for-cable movie (9 and 11 p.m. Hallmark).
Michael Jackson's This Is It: The late performer is seen rehearsing for the comeback concerts that never were in this 2009 documentary (9 p.m. Starz).
Soccer: The World Cup rolls on as Australia squares up against Ghana (6:30 a.m. ESPN), Denmark faces Cameroon (11 a.m. ABC) and Paraguay plays Slovakia (4 a.m. early Sunday ESPN).
Baseball: The Angels visit the Cubs (10 a.m. FSN, WGN America); the Dodgers take on the Red Sox (1 p.m. Fox); and the Athletics play the Cardinals or the Rays meet the Marlins (4 p.m. MLB).
Golf: U.S. Open Championship, third round from Pebble Beach, Calif. (Live) (1:30 p.m. NBC).
Boxing: Allen Green and Andre Ward face off in Oakland for the WBA super middleweight championship (10 p.m. Showtime).
Photo: Warner Bros.