Three's Company (1977)

Strange Bedfellows - S2-E4

Continuity mistake: When Mr. Roper tries to explain to the girls and his wife what he was doing in Jack's bedroom, watch over Mr. Roper's left shoulder on the shelf. The number of yellow cans on the shelf keep alternating between one and two cans throughout several minutes. In addition, also notice the suitcase on the floor under the shelf as well. Whenever one yellow can is shown, the suitcase is by itself and whenever two yellow cans are shown, there is a square silver bag in front of the suitcase.

Ralph Furley: Ohhhh, I'm through with women.
Jack Tripper: Aww.
Ralph Furley: Don't you get any ideas.

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.

The Root of All Evil - S4-E22

Question: When Jack finds the expensive wine that Janet bought, he says that people can only afford that wine if they are "kings, millionaires, or auto mechanics." What is the joke about auto mechanics?