•NBA Playoffs: Games 3 and 4 of the Hornets-Mavericks series switch to Dallas for games at 7 tonight on ESPN (Mike Tirico, Hubie Brown, Lisa Salters) and 8:30 p.m. Sunday on TNT (Kevin Harlan, Doug Collins and Pam Oliver). Phoenix hosts San Antonio at 9:30 tonight on ESPN and 2:30 p.m. Sunday on KOCO-5 (Mike Breen, Mark Jackson, Jeff Van Gundy and Michele Tafoya will call both games). •NFL Draft: ESPN and ESPN2 will combine to show the first two rounds 2-10 p.m. Saturday, and ESPN will show rounds 3-7 from 9 a.m.-3 p.m. Sunday. The NFL Network also will broadcast the entire draft. •Baseball: The N.Y. Yankees at Cleveland series is spotlighted with network broadcasts at 2:30 p.m. Saturday on KOKH-25, noon Sunday on TBS and 6 p.m. Monday on ESPN. ESPN also will air the L.A. Angels at Detroit at 7 p.m. Sunday. •Auto racing: After a week off, the NASCAR Sprint Cup series resumes with the Aaron's 499 from Talladega, Ala., Superspeeday at 1 p.m. Sunday on KOKH-25. •Running: The Oklahoma City National Marathon will air at 6:30 a.m. Sunday on KFOR-4.