Starring: John Ritter, Don Knotts, Suzanne Somers, Joyce DeWitt, Richard Kline
Genres: Comedy
Handcuffed - S4-E18
Plot hole: Chrissy's policeman cousin informs the roommates that there was a complaint from a neighbor about her husband on his roof watching the girls dance in The Apartment with binoculars. However, when the girls were dancing, the front door was fully closed and the very thick drapes were fully closed so how could such a complaint exist?
Revealing mistake: During Jack's dance scene, the old lady that he dances with spins away from him and knocks off a man's toupee. The actress was supposed to knock it off as she went by, but it's obvious that she misses and instead quickly reaches over to snatch it off his head instead.
Stanley Roper: I want my rent.
Helen Roper: Stanley, where are your manners? You're supposed to say hello when you walk into a room.
Stanley Roper: Hello, I want my rent.
An Anniversary Surprise - S3-E20
Trivia: Many TV stations over the years left out the original ending scene (the small party held before the Ropers leave). This scene explains how The New Landlord Mr. Furley knew Jack was supposedly gay in the first episode without anyone mentioning it. This ending reveals Roper told the new owners Jack was gay. Without seeing this ending, the storyline is unclear.
Question: During the first three seasons, all the main cast appeared in every episode (except one without Joyce Dewitt by season 3), but it seems once Suzanne Somers left the show, episodes had some cast members absent on a regular basis (mainly Richard Kline and Don Knotts who both only appeared in selected episodes in the later seasons). Was it a sudden budget cut or another reason for this?
Answer: Richard Kline and Don Knotts were supporting cast members, who could be replaced at anytime. It was John Ritter, Joyce DeWitt and Suzanne Somers who were the star vehicles they relied on to carry the show.