Auto Racing (CC). Indianapolis 500 time trials (ESPN at noon; Channel 7 at 1; ESPN at 5).
Golf (CC). Third round of the LPGA Franklin American Mortgage Championship in Franklin, Tenn. (ESPN2 at 2); third round of the PGA Tour Byron Nelson Championship in Irving, Tex. (Channel 9 at 3).
NHL Playoffs (CC). Conference finals: Tampa Bay at Philadelphia (Channel 7 at 3).
Horse Racing (CC). The 129th Preakness Stakes from Baltimore's Pimlico Race Course (Channel 4 at 5).
Baseball. Anaheim at Baltimore (CSN at 7).
NBA Playoffs (CC). Conference semifinals: Miami at Indiana (TNT at 8); San Antonio at L.A. Lakers (TNT, 10:30).
It's Academic. Blake, Thomas Jefferson and Wilson high schools compete in a playoff round (Channel 4 at 10 a.m.).
The Remarkable Journey looks back on the 50th anniversary of Brown v. Board of Education (Channel 9, 1:30; repeats tomorrow, 1:30).
The Novak Zone. Robert Novak goes sky diving with the U.S. Army's Golden Knights (CNN, 9:30 a.m.).
Weekend Live With Tony Snow. The topic is Iraq; with Brig. Gen. Mark Kimmitt and Dan Senor, senior adviser of the Coalition Provisional Authority (FNC at noon). Rep. Joseph Pitts (R-Pa.) appears tomorrow at noon to discuss the wireless 411 privacy act.
The Beltway Boys. Topics are Donald Rumsfeld's visit to Iraq and John Kerry's criticism of President Bush (FNC at 6).
To the Contrary With Bonnie Erbe looks at a new poll on women who don't vote (Channel 32, 6:30; repeats tomorrow at 9:30 a.m. on Channels 22 and 26).
Fox News Watch looks at media coverage of the Nicholas Berg execution (FNC, 6:30).
Inside Washington With Gordon Peterson. Topics are Defense Secretary Donald Rumsfeld's trip to Baghdad, the Berg execution and waning support for the president's Iraq policy (Channel 9 at 7).
The Capital Gang (CC). Topics include the prisoner abuse scandal, and President Bush and John Kerry on the campaign trail (CNN at 7).
The McLaughlin Group discusses the brutality in Baghdad (Channel 4, 7:30; repeats Sunday, 11:30).
Book TV interviews Chief Justice William Rehnquist on his "Centennial Crisis: The Disputed Election of 1876" (C-SPAN2 at 11; repeats tomorrow at 9 p.m.).
After Hours With Cal Thomas. Retired Army chief Thomas E. White discusses problems at the Pentagon (FNC at 11).
This Is America With Dennis Wholey interviews artists Mark Palmer, Charlotte Erwin, Bill Renzulli and Freda Fairchild, who participated in Kentucky's Paducah Artist Relocation Program (Channel 32, 11:30; repeats tomorrow at 5).
48 Hours Investigates (CC) revisits two unsolved murder cases, including the 1993 slaying of an up-and-coming rock star in Seattle (Channel 9 at 8).
Lewis Black: Black on Broadway (CC). The comedian and "Daily Show" regular performs in a concert taped in February (HBO at 10).
Swordfish (2001) (CC). John Travolta stars as a ruthless spy who hires a desperate computer hacker (Hugh Jackman) to steal government files. Two hours (Channel 9 at 9).
Mad TV (CC). Tom Bergeron spoofs his "Hollywood Squares" game show (Channel 5 at 11).
Saturday Night Live (CC) concludes the season with hosts Mary-Kate and Ashley Olsen and music by J-Kwon (Channel 4, 11:30).