This episode's headline: Balanchine Obituary. The guests include EDWARD VILLELLA, State Ballet of New York; ALAN KRIEGSMAN, Dance Critic. Byline: In New York: ROBERT MacNEIL, Executive Editor; In Washington: JIM LEHRER, Associate Editor; LEWIS SILVERMAN, KENNETH WITTY, Producers; GORDEN EARLE, Reporter; BRUCE KAUFMAN, KATHRYN OLSON, Researchers; Videotape: Anna Kisselgoff and Gene Kelly: BOB LONG, DAN WEBB, Camera; RAY WALKER, GERRY SAAVEDRA, Audio; BILL STEPHAN, Editor; MARY JANE O'DONNELL, Reporter