Morning Report : ARTS AND ENTERTAINMENT REPORTS FROM THE TIMES, NEWS SERVICES AND THE NATION’S PRESS.

TELEVISION

Another Jane for Gumbel: CBS expects to announce Tuesday that Jane Clayson, an ABC News correspondent based in Los Angeles, will co-anchor CBS’ “The Early Show” with Bryant Gumbel, according to a source close to the negotiations. The network began to outline plans for a dramatic overhaul of the third-ranked morning show in February when CBS chief Leslie Moonves and the network’s news president, Andrew Heyward, began a full-court press to convince Gumbel, former co-anchor of NBC’s top-rated “Today” show, to return to morning duty. “CBS This Morning,” which airs 7-9 a.m. weekdays with anchors Mark McEwen and Jane Robelot, will be replaced by the Gumbel-Clayson program Nov. 1.

Multilingual Telethon: The 1999 Jerry Lewis Muscular Dystrophy Assn. Telethon, which begins Sunday at 6 p.m. on KCAL-TV, will be transmitted live on the World Wide Web in three languages--English, Spanish and Japanese. The 21 1/2-hour broadcast--available at https://www.mdausa.org--will become what’s believed to be the world’s first live multilingual Web cast. Last year’s English-language Web cast attracted users from 64 countries.

ART

Secret of the Secret Smile: An Italian doctor claims to have discovered the secret to the Mona Lisa’s enigmatic smile: a compulsive gnashing of teeth. Dr. Filippo Surano said he believes the noblewoman in Leonardo Da Vinci’s famous portrait suffered from bruxism, an unconscious habit of grinding the teeth during sleep or periods of mental stress. Surano says the strain of posing for the painting could have triggered an attack of teeth grinding. He has sent a summary of his thesis to the Da Vinci Museum in Florence, where the artist was born, La Repubblica newspaper reported.

POP/ROCK

Weiland Gets Jail: Stone Temple Pilots lead singer Scott Weiland was sentenced Friday to one year in county jail for a third violation of his probation from a 1997 drug possession case. The 31-year-old singer, dressed in a jail-issued orange jumpsuit, was led away by a bailiff after Los Angeles Superior Court Judge Larry Paul Fidler explained his sentencing decision: “[Weiland] went down a certain road. Because he chose to go down that road, he will get the 365 days that I promised him.” The singer has been jailed since Aug. 13, when he admitted to Fidler that he had violated his probation. According to court documents, the troubled Weiland was admitted to a Marina del Rey hospital on July 5 after overdosing on heroin and has repeatedly failed to complete rehabilitation. Sources at Atlantic Records say Weiland’s imprisonment is not expected to delay the scheduled Oct. 26 release of the new Stone Temple Pilots album, “No. 4.”

MOVIES

Wishing at the Witching Well: The success of the summer sleeper “The Blair Witch Project” has spread to the Florida university attended by the five men who made the hit movie, with enrollment in one film course up by 500%. A spokesman for the University of Central Florida in Orlando said this week that 250 students had signed up for its “Introduction to Film” class this fall, compared with 48 last year. Made on a rock-bottom $25,000 budget by the five friends, it has thus far grossed more than $128 million. “ ‘Blair Witch’ has, at least, created the impression that our film program is on the map,” said Sterling Van Wagenen, the program’s director.

RADIO

The Lange Report: If the name--Kelly Lange--and the voice on all-news KFWB-AM (980) clicked, you heard right: The longtime former KNBC-TV newscaster was filling in as “special guest anchor” for Ken Jeffries several days this past week in afternoon drive, and will be on again next week. Program director Dave Cooke and news director Crys Quimby say she’s “terrific” but both are mum as to whether this means a future slot. Lange also is heard Sundays from 5 to 8 p.m. on another CBS-owned station, KRLA-AM (1110). She got the talk slot in June.