What to watch

•Horse racing: Big Brown goes for its second Triple Crown victory in the Preakness Stakes. Coverage begins at 3:30 p.m. Saturday on KFOR-4. Tom Hammond and Bob Costas will co-host NBC's coverage. Costas will lead a roundtable discussion that will examine the death of filly Eight Belles at the Kentucky Derby.

•Baseball: The first two Bedlam games will be televised: at Tulsa at 7:30 tonight on FSN Southwest (Chad McKee and David Garrett) and at Oklahoma City at 7:30 p.m. Saturday on Cox 7 (Brian Brinkley and Kenny Mossman). FSN Southwest will have a Big 12 doubleheader Sunday with Texas at Texas A&M at 1 p.m. and Nebraska at Missouri at 3:30 p.m.

Interleague play makes its season debut. Telecasts include N.Y. Mets at N.Y. Yankees, 7 p.m., Sunday, ESPN; Milwaukee at Boston, 2:30 p.m. Saturday, KOKH-25; 12:30 p.m. Sunday, TBS; Houston at Texas, 6 p.m. Saturday, FSN Southwest; Tampa Bay at St. Louis, 7 tonight, noon Saturday and 1 p.m. Sunday on Cox 7.

•NBA playoffs: Tonight ESPN has a pair of conference semifinal sixth games with Boston at Cleveland at 7 and L.A. Lakers at Utah at 9:30. KOCO-5 will broadcast either Game 7 of the Boston-Cleveland series or Game 1 of the Eastern Conference finals at 2:30 p.m. Sunday. Which draft pick will Sonics get? Find out in the NBA draft lottery at 7 p.m. Tuesday on ESPN.