Q. Where was "Little House on the Prairie" filmed and is the location available to the public? - W.L.M., Murrietta, Calif.

A. The "Little House" was on a sound stage with some outdoor work done at a ranch in California's Simi Valley. Star/producer Michael Landon joked that it was tough to keep the mountains out of the background in the outsoor shots. There were no mountains in the prairies that Laura Ingalls Wilder wrote about in her books. The show ended production in 1982, and the sets were dismantled long ago.Q. Isn't Dick Cavett, of the "Talk Weekend" schedule on CNBC, worried about the proliferation of talking heads on TV?

A. He's puzzled by the seemingly unquenchable thirst for chat. "Apparently, many people are addicted to talk in almost any form," says Cavett, 53. "Maybe people think they're going to get `the answer.' . . . I wonder if they'll get to the point (where) there's so much talk on the air that people will say, `That violence on TV the other night was a relief.' "

Q. Did fashion designer Bob Mackie's flamboyance possibly come from time spent in theatrical wardrobe rooms?

A. Mackie, 51, probably best known as Cher's designer, did start out with costume maven Edith Head in the '60s, but he really credits his early set of Betty Grable dolls for his inspiration. "It wasn't that I played with them as dolls," he explains. "It was just a way of designing clothes. Nobody ever knew. I kept it a secret. Actually, what I used to do was put on shows on top of my dresser." Years later the button-down man in the bow tie became known for his vampish and sultry fashions.

Q. Whatever happened to Sha Na Na, the '50s-revival rock 'n' rollers?

A. The essence of the good-time group makes a comeback every once in a while, although their membership is pretty fluid. A popular live attraction in the '70s, particularly with its humor and costumes, Sha Na Na became a surprise TV hit with a syndicated musical variety show from 1977 to 1981. The band, which last year released its first album in a decade, called "34th and Vine," now includes a female singer, "greaserette" Lisa Sundstedt.

Q. Was Dana Delaney always conscious of her sex appeal?

A. You bet. "I always knew it," says the "China Beach" star. "I figured that people would figure it out sooner or later." That's why Delaney was particularly miffed when she almost lost out as star of the ABC series because, according to network executives, she wasn't "sexy enough." Delaney admits to "neuroses" about physical flaws and fights flab with daily yoga classes, a vegetarian diet and plenty of water. But "one thing I've never been worried about," she emphasizes, "is my sexuality."

Q. Just who is this Yanni, Linda Evans' young flame?

A. He is Yiannis Chryssomalis, a Greek musician who goes by "Yanni" (and "Christopher," sometimes). Yanni, in his late 30s, plays both classical and New Age music with his synthesizer and has released six records. But not until his romance with Evans was widely touted last fall on "The Oprah Winfrey Show" and in People magazine did sales of his latest album, "Reflections of Passion" (Private Music), really soar. His official press release declares that he has "an exclusive relationship" with Evans, 47. They have been companions for about two years and share a home in the Hollywood Hills.

Q. Tell me about that yummy guy, Arthur Kent of NBC News. Where can I write? - J.A.D., Beverly Hills, Mich.

A. Kent, born Dec. 27, 1953, in Medicine Hat, Alberta, Canada, started in TV in Ottawa, once produced a movie with Michael J. Fox and Roddy McDowall, covered the war in Afghanastan and joined NBC in 1989. He's divorced, lives in Rome when not in the Persian Gulf. A letter to NBC News, 30 Rockefeller Plaza, New York, NY. 10112, will be forwarded.

Q. I just adore Tommy Lee Jones, of "Lonesome Dove." Tell me about him. - E.M.C., Philadelphia.

A. Texan Jones is 44, played football and graduated cum laude in English at Harvard. He did theater in New York, the soap opera "One Life to Live," made his movie bow in a bit in "Love Story." The 1977 TV movie "The Amazing Howard Hughes" made him a star. He has an Emmy for "The Executioner's Song." His features include "The Eyes of Laura Mars," "The Betsy," "Coal Miner's Daughter." He's married, has a young daughter and lives in Texas.

Q. Settle a bet: I say Tommy Lee Jones is tall, 6 feet or over. My friend says he's only 5 feet 6 or 7. Who buys dinner? - D.S., Philadelphia.

A. Your friend. Jones' bios give his height as 6 feet 11/2 or 6 feet 1/4.

Q. Cloris Leachman! No way. June Lockhart was Timmy's mommy on "Lassie." Confess, you goofed. - E.H., The Dalles, Ore.

A. You and a lot of others lost a year. As we said, when the Millers sold the farm, complete with Lassie, to Timmy's folks, the Martins, in 1957, the grown-ups were played by Cloris Leachman and Jon Sheppodd. Lockhart and Hugh Reilly took over as Ruth and Paul Martin in 1958 and played them until 1964, when Lassie joined the forest rangers.

Q. Give me some personal information on David Strathairn, who appears in "The Days and Nights of Molly Dodd" and in the feature "Memphis Belle." - J.S., Atlanta.

A. Strathairn's 32, a native of San Francisco and a graduate of Williams College. He clowned for the Ringling Bros. Circus and worked summer theater and children's theater before he made his movie bow in 1980's "The Return of the Secaucus 7." Other movies: "Eight Men Out," "Silkwood," "The Brother from Another Planet." He's single.

Q. About eight or nine years ago, I dated Nicolette Sheridan of "Knots Landing." Her name was Tonya Crowe then. My buddy was married to her sister and they introduced me to her. The four of us went to a country-music place on Buffalo's west side. I wonder if she remembers. Where can I write her? - R.M.M., Buffalo, N.Y.

A. You sound like one of Ann Landers' jokster Yalies with that mish-mash of incorrect info. Sheridan is from England, although she spent a few years in Los Angeles as child. Tonya Crowe, who's Olivia Dyer in "Knots Landing," is a California girl who made her acting bow at 6 in "Charlie's Angeles."

Q. I've got a bet on this: Is Joan Van Ark married to Los Angeles TV newsman John Marshall? I say yes. - A.N., Reseda, Calif.

A. You win. Van Ark and Marshall, who met in high school, have been married 23 years and have a daughter, Vanessa, 20.

Q. Where can I write to Fred Savage, Kevin Arnold of "The Wonder Years"? - L.N., West Bloomfield, Mich.

A. Write: ABC-TV, 2040 Avenue of the Stars, Los Angeles, Calif. 90067.

Q. I loved "Dances with Wolves." Tell me about the talented native American actor Rodney A. Grant. What other movies has he starred in; when was he born and where; is he single? - S.D., Westminster, Calif.

A. Grant, 31, was born on an Omaha reservation near Winnebago, Neb. He did odd jobs and worked through drug and alcohol problems, including a short jail stint, before deciding to be an actor. He had a small part in a Nebraska documentary, then made his movie debut in 1988's "War Party." He did a stint in 1989's "Powwow Highway" and then "Dances" and TV's "Son of Morning Star" in which he played Sioux war chief Crazy Horse. He has three daughters by his first marriage, a son from another relationship and was married a second time last November.

Q. Where can I get a videocassette of "The Desert Song"? - R.T.B., Macon, Ga.

A. None of the three movie versions, 1929, 1944 and 1953, are listed as on cassette. Sigmund Romberg's ancient operetta about a secret leader fighting nasty Arabs isn't likely to make it soon.

Q. One evening recently, l saw the movie "Against All Flags" starring a most beautiful and talented actress, Maureen O'Hara. Tell me about her and name a few of her films. And give me an address. - P.F. Jr., Virginia Beach, Va.

A. O'Hara, now 70, has just finished her first movie in 19 years, "Only the Lonely" for 20th Century Fox. Dublin-born Maureen Fitzsimmons made her movie debut in 1938, was first seen in the U.S. in "Jamaica Inn." Among her 55 movies, "How Green Was My Valley, " "The Black Swan" "Sitting Pretty," the original "Miracle on 34th Street" and five movies with John Wayne, including "The Quiet Man." She retired in 1971 after "Big Jake" (with Wayne) to be with her husband, retired general and pilot Charles Blair, who ran an airline in the Caribbean. After his death in 1981, she ran the airline. Write: 20th Century Fox, Box 900, Beverly Hills, CA 90213.

Q. I fell in love with Robert Preston in "The Music Man" when my son gave me the cassette for Christmas. What is Robert doing these days? - C.L., Roseville, Mich.

A. Preston died at 69 in 1987.

Q. A friend claims that Preston Foster and Robert Preston are brothers. I say no. - J.H.H., Dearborn Heights, Mich.

A. You say right. They weren't related. Preston was born Robert Preston Meservey. Foster used his real name. He did at 68 in 1970.

Q. I want to know what happened to Reva Shane on "The Guiding Light"? She made the show worth watching. - M.S., Detroit.

A. Grand Rapids native and Hope College grad Kim Zimmer, who played Reva Shayne since 1983, decided she wanted to try the acting waters in California and opted to leave the soap. Zimmer's has done some prime-time TV already: guest roles on "MacGyver" and a TV pilot movie "Trenchcoat in Paradise," seen last season on CBS.

Q. What has happened to the actor who played Edward Quartermaine on "General Hospital"? He was killed off on the show. Did the actor die in real life or leave for another show? - E.L., St. Joseph, Mo.

A. Veteran actor David Lewis, 75, has been very ill and won't return to acting. It was decided to kill off the character Lewis created and has played since 1978.

Q. Is Clint Black, the country singer, related to Roy Rogers? He looks like him. - M.L., St. Joseph, Mo.

A. Texan Black, 28, isn't related but the looks have brought more than one comment. One observer remarked on his "Richard Gere-Roy Rogers looks."

Q. Did Carl Reiner return to TV as host of NBC's new "Sunday Best" series because he feared becoming a has-been?

A. Call it an offer he couldn't refuse. To do the comedy show that runs opposite CBS's "60 Minutes," Reiner, 68, has to work only Sundays, and then for less than half a day, for a nice chunk of change. It gives him time to finish the novel he's been procrastinating over for months. Not that the funnyman dad of funnyman director Rob Reiner hasn't been busy since he left TV in the '70s. He's written, produced or directed such comedies as "Oh, God," "Dead Men Don't Wear Plaid" and last year's "Sibling Rivalry."

- Send your questions to Celebrity Questions, Detroit Free Press, Detroit, MI 48231.