THE LARRY KING SHOW sets up shop in the Jefferson Hotel Friday evening with a live broadcast featuring actress Susan Lucci of television's "All My Children," Jim and Kate Lehrer, three cast members from the hit musical "Cats," New Zealand's Barbara Riley, who is Mrs. World, and Byron Stripling, who is appearing as Satchmo at the Kennedy Center Opera House through September 5. The King show is heard live weeknights at 11 on WTOP-AM (1500).

Fans of sittin' 'n' pickin' music won't want to miss "Austin City Limits" at 8 p.m. Saturday featuring guitarist Chet Atkins, jazz pianist Butch Thompson, former musical director of "A Prairie Home Companion" Peter Ostroushko, fiddler Johnny Gimble, humorist Roy Blount Jr. and others on WETA-FM (90.9). At 9, the Kingston Trio and Friends Reunion features Tommy Smothers, Mary Travers and Fleetwood Mac's Lindsey Buckingham. Both programs will be simulcast on Channel 26.

WMAL-AM (630) has added "Saturday Night Gold," a three-hour review of the music and events of the '50s and '60s and hosted by John Dowling. The show begins at 9 p.m., and if it seems familiar, it's because it's loosely patterned after the old "Sunday Night Thing of the Past" show, which died more than a year ago on another station.

Speaking of the past, WMAL sportscaster Johnny Holliday has begun reliving the Redskin glory days on Sunday monrings at 11:15.

Radio Smithsonian, heard 9 p.m. Sundays on WGMS-AM/FM (570/103.5), this week explores the night with an insomniac tour of Baltimore and a look at the Smithsonian's slew of nighttime cultural events.

Here's what else is in the air: