All times are E.S.T.
[Color television]Color television
[Network radio]Network radio
Friday, March 24
Natl. Junior Championship, Boston (through March 26).
NCAA semifinals, university division, Kansas City, Mo.
National Boat Show, Chicago (through April 2).
NCAA Champs., Princeton, N.J (also March 25).
American Kart Race of Endurance, Sebring, Fla.
Harriman Cup, Sun Valley, Idaho (through March 26).
Saturday, March 25
NCAA finals, university division, Kansas City. Mo.
[Television]National Invitation Tournament final, Mad. Sq. Garden, New York, 4 p.m. (NBC)
[Television]NBA playoffs, 2 p.m. (NBC).
[Television]Make That Spare, 10:45 p.m. (ABC).
[Television]Fernandez vs. Pigou, middles, 10 rds., Mad. Sq. Garden, New York, 10 p.m. (ABC).
[Television]All-Star Golf series, Collins vs. De Vicenzo, 5 p.m. in each time zone (ABC).
Arizona Horse Lovers' Club (spring show), Phoenix, Ariz, (also March 26).
HUNT RACE MEETING
Stoneybrook Meeting, Southern Pines, N.C.
Grand National Steeplechase, Aintree, England.
John B. Campbell Handicap, $100,000, Bowie.
[Television]Paumonok Handicap, $25,000, Aqueduct (Sports Network regional TV).*
Sebring 12-Hour Endurance Race, Sebring, Fla.
Sunday, March 26
[Television]Sunday Sports Spectacular, "Paul Richards—Manager," 2:30 p.m. (CBS).
[Television]Lipton Trophy Challenge ocean race, San Diego.
[Television]Championship Bridge, Art Glatt and Manny Kaplan vs. Victor Kwong and Mrs. Nell Complin, 4 p.m. (ABC).
Hoosier Kennel Club show, Indianapolis
NASCAR Atlanta "500," $64,400, Atlanta.
Sugar Bowl International, $3,000, Norden, Calif.
Monday, March 27
Seminole Pro-Am, $10,000, West Palm Beach, Fla. (also March 28).
Good Neighbor Champs., Miami Beach, Fla. (through April 2).
Tuesday, March 28
East-West All-Star game, Kansas City, Mo.
Wednesday, March 29
U.S. Open Amateur Championship, Long Beach, Calif, (through April 1).
Golden Gloves Natl. Champs., Chicago.
Natl. Intercollegiate Invitational, Houston (through April 1).
Thursday, March 30
Inaugural Trot, $25,000, Yonkers.
U.S. Senior Men's Indoor Champs., New Haven, Conn. (through April 1).
*See local listing.