The fourth season of Perfect Strangers finds aspiring photographer Larry (Mark-Linn Baker) and his Myposian-born cousin Balki (Bronson Pinchot) still working in entry-level jobs at the "Chicago Chronicle." Likewise carried over from the previous season is Larry and Balki's tendency to enmesh themselves in situations reminiscent of Laurel & Hardy, never more so than when the boys agree to move a piano up ten flights of stairs at the behest of the "Chronicle"'s neurotic advice columnist Lydia (Belita Moreno). More zany slapstick ensues in the two-part episode which finds Larry and Balki, their stewardess neighbors Mary Anne (Rebecca Arthur) and Jennifer (Melanie Wilson), and the "Chronicle"'s acid-tongue elevator operator Harriette (Jo Marie Payton-France) embark upon a disastrous camping trip. Later escapades include Balki's first airplane flight, and a hectic Q&A session when Larry and Balki compete on a TV game show. Plus, there's the obligatory Christmas episode, in which Balki generously arranges a party for his curmudgeonly mail-room supervisor Mr. Gorpley (Sam Anderson). And in a more original development, Balki is hypnotized into thinking that he's Elvis, thereby setting up a "tour de force" for series regular Bronson Pinchot. Also: Balki prepares for a college entrance exam with the aid of memories from past episodes (the standard Season Four "clip show"); Doris Roberts (Everybody Loves Raymond guests as a maid whose efficiency drives everyone crazier than usual; and John Matuszak shows up as the head of a motorcycle club for which Balki must undergo a riotous initiation ceremony. Perhaps the season's most significant episode is "Crimebusters", in which Larry and Balki go undercover to research a newspaper story and run afoul of gangsters--one of whom turns out to be an undercover cop named Carl (Reginald VelJohnson), who happens to be the husband of the boys' coworker Harriette. Within the next year, both Harriette and Carl would be spun off into their own long-running sitcom, Family Matters. ~ Hal Erickson, Rovi