I know the Frasier character has been around a long time. I also know he's done some cameos on other sitcoms playing the Frasier character. Does anybody know what other sitcoms Frasier appeared on?

According to the Internet Movie Data Base (imdb.com), Kelsey Grammer played Frasier in an episode of "Wings" entitled "Planes, Trains, and Visiting Cranes" on 2-13-92. He was nominated for an Emmy for his appearance. Bebe Neuwirth appeared also as Lilith. Grammer also played Frasier on an episode of "The John Larroquette Show" entitled "More Changes" on 9-30-95.