Angered when Diane (Shelley Long) laughingly points out that he only dates airheads, Sam (Ted Danson) makes it his mission in life to find a more intellectual female companion. Diane stops laughing when Sam finds a girl who may actually have half a brain. Meanwhile, an old customer demands to see Cheers' owner immediately, if not sooner. This episode represents the only appearance of Sam Malone's ex-wife Debra (played by Broadway musical comedy headliner Donna McKechnie). ~ Hal Erickson, Rovi