GOODWILL CONTINUED: TBS's ratings showed an increase during the first three days of the Goodwill Games. The inaugural show last Friday drew a 1.6 rating or about 700,000 viewers, followed by a 1.9 (Saturday afternoon), 2.2 (Saturday night and Sunday afternoon) and 2.8 (Sunday night).

NBA ON NBC: The Pistons, Celtics, Bulls, Knicks or Lakers are on all 22 of NBC's main NBA telecasts next season. There also are backup games and the All-Star Game. Coverage, which includes four doubleheaders, begins Oct. 13 when New York plays in the McDonald's Open in Barcelona.

IVY LINEUP: ESPN announced its Ivy League football schedule: Sept. 15, Penn at Dartmouth; Sept. 22, Northeastern at Harvard; Oct. 6, Lafayette at Columbia; Oct. 27, Brown at Cornell; Nov. 10, Princeton at Yale.

OOPS: ESPN inadvertantly imitated TNT's World Cup coverage by switching to a commercial during game action. With two out midway through the Yankees-Rangers game Wednesday, ESPN inexplicably broke to a 30-second commercial. When it returned, Nolan Ryan, the night's main attraction, was out of a difficult inning.

With Ryan trying for his 300th win, ESPN got its best overnight baseball rating (4.6, 2.58 million viewers), easily surpassing the 4.0 for the Dodgers-Reds game June 24.

BIG 33: Saturday's Big 33 high school all-star football game will be broadcast live by Rockville's WINX-1600.

SIGNINGS: Mizlou's 24-hour Sports News Network signed Guy Junker from WTAE in Pittsburgh as its newest anchor. . . .

Professional racer Lyn St. James has joined ESPN as a pit reporter for seven CART Indy-car races and one IMSA Camel GTP event. She was in pit lane July 8 at the Cleveland Grand Prix when a fuel spill ignited Al Unser Jr. and two crew members.