Learning that developers want to bulldoze his mother's house to make room for a mini-mall, Cliff (John Ratzenberger) circulates a petition to prevent this architectural catastrophe. One neighborhood resident who refuses to sign is Cliff's mom (Frances Sternhagen) herself, who eagerly looks forward to the money she'll receive in exchange for the family house. Elsewhere, the Cheers gang is desperate to ascertain the origin of Rebecca's (Kirstie Alley) college nickname: "Backseat Becky." ~ Hal Erickson, Rovi