NCAA Indoor Track and Field Championships | Fresh off wins in the 3,000 and 5,000 meters at the SEC championships last month, Arkansas sophomore Peter Kosgei tries to lead the top-ranked Razorbacks to their 40th NCAA title, on their home track in Fayetteville.
Louisiana Derby ESPN2 4 p.m. | Scipion looks to prove that his win at 10--1 in last month's Risen Star Stakes was no fluke. U.S. Snowboard Cup NBC 2 p.m. | Lindsey Jacobellis tries to pick up a World Cup win when the tour makes its only U.S. stop, in Lake Placid, N.Y.
Saturday Night Live NBC 1 a.m. | A replay of a 1979 show features former Celtics legend Bill Russell as host. UAW--DaimlerChrysler 400 Fox 2 p.m. | Here's the smart bet: Matt Kenseth, who has won the last two races at the Las Vegas Motor Speedway.
World Figure Skating Championships | Favorite Irina Slutskaya skates on home ice as the competition returns to Russia for the first time in 102 years. Real Sports with Bryant Gumbel HBO 9 p.m. | Boxer Kassim Ouma discusses being a child soldier in Uganda.
On Shelves: The Old Ballgame by Tom Seaver | The Hall of Fame pitcher talked baseball with Willie Mays, Yogi Berra, Cal Ripken and others. NCAA Tournament ESPN 7 p.m. | March Madness kicks off as Nos. 64 and 65 face off in a play-in game in Dayton.
Late Show with David Letterman CBS 11:35 p.m. | Ultramarathon Man Dean Karnazes--whose résumé includes a race at the South Pole--visits. One Strong Arm A&E 10:30 p.m. | The story of Cody Wagner, 17, an arm-wrestling champ who is partially paralyzed.
St. Patrick's Ski Week Celebration | Skiing leprechauns schuss on green snow in Killington, Vt. Lakers at Heat TNT 8 p.m. | Shaq versus Kobe II. After a 104--102 Miami win in L.A. on Christmas, O'Neal goes for a sweep as his old team hits his new town.
APRIL L. BROWN (KOSGEI);
JOHN IACONO (SEAVER);
GUANG NIU/GETTY IMAGES (SLUTSKAYA);
LOU HODGES JR./FAIR GROUNDS RACE COURSE/AP (SCIPION)
CHRIS HARDY (KARNAZES);
KEVIN FRAYER/AP (LEPRECHAUN);