Glynis Johns guest stars as Helen Chambers, the mother of Diane (Shelley Long). Sweeping majestically into Cheers, Helen dolefully announces that Diane must marry within 24 hours or lose her share (and her mother's) of her late father's estate. Helpful Sam (Ted Danson) agrees to a quickie wedding ceremony, secure in the belief that he can just as quickly revert to bachelorhood -- or can he? Future semi-regular Paul Willson appears as Gregg (rather than his familiar role as the habitually "left out" Paul). ~ Hal Erickson, Rovi