STAGE

Mac Is Back: On the heels of Keith Carradine’s formal departure from “The Will Rogers Follies,” Mac Davis has been tapped to return to the show. Davis will assume Carradine’s role for performances at the Pantages Theatre and the resuming tour, although promoters on Friday could not confirm the date of his first appearance. Carradine, who has not appeared in the show since late July, cited excessive fatigue and back problems in his decision. According to publicist Bob Palmer, Carradine “feels very weak. He wants very much to continue the show, but his body won’t help him out.” The play will remain in Los Angeles through Sept. 26.

TELEVISION

To Emmy or Not to Emmy: CBS, NBC and Fox are boycotting this year’s prime-time Emmy Awards, declining to send either executives or publicists to the event. The three networks are angered by the Academy of Television Arts & Sciences’ exclusive, long-term deal with ABC to broadcast the awards. However, the boycotting networks are apparently not lobbying their stars or producers to stay away from the ceremony, and most nominees are expected to be in attendance at the event Sept. 19.

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Dave TV: CBS, already flooding the airwaves with promotions for David Letterman’s new late-night program, has jumped into the infomercial business. The network has sent affiliates a half-hour “optional” infomercial featuring, among other things, an interview with Letterman by Harry Smith of “CBS This Morning.” CBS officials maintain that the promotional barrage is not excessive in light of the impending late-night competition.

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They Didn’t Watch: Despite controversy over its fictionalized version of history, the cable movie “Marilyn & Bobby: Her Final Affair” drew anemic ratings last week, according to figures released Thursday by the A.C. Nielsen Co. With an audience of about 1.7 million homes, the USA Network presentation ranked only 13th among cable programs and did not outdraw any of the 89 prime-time programs shown by the four broadcast networks last week.

RADIO

Radio Realtor?: After 17 months at KRLA-AM (1110), golden-oldies morning deejay Dave Hull has left the station and the business. According to the station’s program director, Mike Wagner, Hull is pursuing his career as a full-time realtor at Pine Mountain Club near Frazier Park. Hull’s replacement in the 6-10 a.m. slot Monday through Saturday is Mucho Morales. On Sunday, former station manager Art Laboe debuts “Killer Oldies,” 7 p.m. to midnight.

ART

Next Stop, L.A.?Negotiations are under way to bring “Great French Paintings From the Barnes Foundation” to the Los Angeles County Museum of Art. The landmark exhibition features 80 works from the celebrated holding of the late Dr. Albert C. Barnes, an eccentric collector who refused to allow his treasures to leave their home in Merion, Pa. The current tour, with stops in Washington, D.C., Paris and Tokyo, was designed to raise funds to renovate the Barnes Foundation’s property. No agreement on extending the tour through Los Angeles has been reached yet, according to Jessica O’Dwyer, the museum’s press officer.

MUSIC

Triple Tenors: Tickets are on sale for “Encore--The Three Tenors,” the Jose Carreras/Placido Domingo/Luciano Pavarotti concert scheduled July 16, 1994, on the eve of the World Cup soccer finals. The concert will be held at Dodger Stadium, not the Rose Bowl, as previously reported.

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Charges Dropped: Racketeering charges against rap artist Dr. Dre and Death Row Records were dropped by a U.S. District Court judge last week. The charges of extortion, money laundering and copyright infringement had been filed by Dre’s former NWA bandmate rapper Eazy E and Ruthless Records.

QUICK TAKES

TriStar Pictures’ “Sleepless in Seattle” is expected to cross the $100-million mark at the box office today, making it the third summer film to surpass the milestone. . . . “Little House on the Prairie” star Melissa Gilbert has filed for divorce after five years of marriage to actor Bo Brinkman. . . . Longtime KTLA-TV Channel 5 reporter Stan Chambers, who turned 70 last week, is writing a book on his experiences, which include coverage of the historic 1949 rescue attempt of young Kathy Fiscus from a San Marino well and being the first in any medium to report on the 1991 beating of Rodney G. King.