Arts and entertainment reports from The Times, national and international news services and the nation’s press.

RADIO

KLSX-FM Changes: KLSX-FM (97.1) deejays Cynthia Fox, who followed Howard Stern in the mornings; Bob Coburn, who did afternoon drive, and Jim Ladd, who had the nighttime show, have been dismissed as the station switches from its rock classics format to talk on Tuesday, a source close to the station confirmed Friday. Joe Benson’s slot on the 6 p.m. to midnight show on Sundays will continue. As the station gets ready to announce its new lineup next week, Chicago deejay Jonathan Brandmeier of WLUP-AM said that KLSX made an offer but they “couldn’t come to terms.” And John Kobylt of KFI-AM’s (640) top-rated “The John and Ken Show” said: “We got an inquiry about our availability a couple of weeks ago. My attorney got the call. We’re under contract for two years so it was kind of a moot thing. . . . Plus we just hit No. 1 so it wouldn’t make any sense to kind of experiment. I’m not going to be hitching our fortunes to Kato’s [Kaelin] popularity,” he said with a laugh, referring to KLSX’s new talk-show host.

PEOPLE WATCH

Fighting Hard: Director Louis Malle is undergoing treatment for low-grade T-cell lymphoma. Malle, 62, in Los Angeles with his wife, actress Candice Bergen, is responding to treatment, Bergen’s publicist, Allen Eichhorn, said Thursday. Low-grade T-cell lymphoma is a cancer of the lymph glands that weakens the immune system by attacking cells that fight disease. Malle suffers from immune deficiency from the disease. He was scheduled to begin filming a movie about Marlene Dietrich this summer. Bergen returns to work on “Murphy Brown” on Aug. 7. The director’s credits include “Vanya on 42nd Street,” “Damage,” “My Dinner With Andre” and “Atlantic City.”

MOVIES

Lukewarm Water: The question of whether “Waterworld” would sink or swim was still left afloat Friday when critics across the country gave the film mostly mixed reviews. The New York Times called it a “big, brawny epic” that “goes slack between taunts and explosions.” Gene Siskel of the Chicago Tribune called it “boring and ugly,” while Roger Ebert wrote in the Chicago Sun-Times that the film missed in places it could have hit. But USA Today gave it three stars, and the Miami Herald called it a “visionary, action-packed epic with aquatic stunt work of unprecedented scale.” The film, starring Kevin Costner and Dennis Hopper, opened in theaters Friday after an estimated $175 million was spent on it.

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Saturday Morning: Twentysomethings hoping to return to those magical childhood days of Saturday morning television can do so with two new film and video projects. One is a big-screen adaptation of Sid and Marty Krofft’s “The Land of the Lost,” which has been given a $40-million budget by Walt Disney Pictures and is currently in pre-production, a spokesman for the Kroffts said. Peter Lenkov (“Demolition Man”) is writing the script, and the two Kroffts--the film’s producers--are negotiating with undisclosed stars. Meanwhile, those irrepressible “Schoolhouse Rock” music and cartoon snippets that ABC aired between its regular shows will be available on four home videocassettes from ABC Video on Aug. 8. The videos will feature such memorable shorts as “My Hero Zero,” “I’m Just a Bill” and “Conjunction Junction.”

MUSIC

Blown Away: Trumpeter Donald Byrd’s engagement at Catalina Bar & Grill in Hollywood, which began Tuesday and was scheduled to run through Sunday, has been canceled. The cancellation was due to Byrd’s presenting a rap artist with his group on what was supposed to be a straight-ahead jazz show, said Bob Popescu, the room’s owner. Replacing Byrd tonight and Sunday is a quartet of Ralph Moore (saxes), Nick Smith (piano), Marvin (Smitty) Smith (drums) and Sekou Bunch (bass).

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Back on the Farm: Farm Aid Inc. announced Friday that it will celebrate its 10th anniversary with a benefit concert at Cardinal Stadium in Louisville, Ky., on Oct. 1. Hootie & the Blowfish will join usual performers Willie Nelson, Neil Young and John Mellencamp, who are all also Farm Aid board members. Other performers will be announced. Tickets go on sale Aug. 28 and can be bought through Ticketmaster. Farm Aid has raised more than $12 million for American farmers since it began in 1985.

QUICK TAKES

The Los Angeles Philharmonic announced Friday that advertising executive Michael J. Buckland, who has worked with the Philadelphia Orchestra, will become its new director of marketing and communications starting Tuesday. . . . Reprise Records will release a 450-song Frank Sinatra box set in celebration of his 80th birthday on Dec. 12. The collection offers more than 24 hours of music. . . . Pedro Zamora, the star of MTV’s “The Real World” who died of complications of AIDS last November, was honored last week with the opening of a new HIV clinic in Hollywood that carries his name. The Pedro Zamora Youth HIV Clinic offers assistance to young gay people with HIV and AIDS.