Perfect Strangers is a sitcom about Larry Appleton, a high-strung Chicago resident, sharing his apartment with his distant cousin Balki Bartokomous, a shepherd from the (fictional Greek-style) island nation of Mypos.
Balki is naive, idealistic, and new to America; he often misunderstands the culture (with humorous results). Many episode plots involve Larry's schemes getting the better of him, causing him to subsequently need Balki's rescue. The series is rich in slapstick physical comedy based on Laurel & Hardy-like situations.
Balki's catch phrase is, "Of course not, don't be ridiculous!" (Usually said in response to having been found out for something he did). Balki and Larry occasionally celebrate good fortune by dancing the "Dance of Joy", a silly cross between a Dosado and the Hokey Pokey.
Perfect Strangers spawned the spinoff series Family Matters, also set in Chicago. The connection is that Harriette Winslow was a co-worker of Larry and Balki at the Chicago Chronicle. It is revealed in the third episode of Family Matters that they fired Harriette from the Chronicle because they decided to switch to a self-service elevator, eliminating her job.