Trivia: Richie and Joanie had an older brother named Chuck, who was played by two different actors, and who only appeared during the first season of the show, because the character of Chuck was written off the show. This plot plot has since absorbed into popular culture: known as "Chuck Cunningham Syndrome," it refers to a character's (either leading or supporting) unexplained disappearance from a series.
Trivia: In Season 5, in the 3 part special (episodes 89-91) the whole gang heads to Hollywood. It is here that Fonzie jumps over a caged shark on water skiis. Today a TV show is said to have "jumped the shark" when it has passed its peak and fans feel a significant drop in quality. The phrase was popularized by the website www.jumptheshark.com.
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Question: When this episode first came out, I vaguely remember a scene in the beginning where Ralph runs into Arnold's and yells to the people inside something like, "There's a flying saucer outside!" and no one believes the normal-joking Ralph. Then Richie comes in behind him and yells the same thing, and then the people all scream and flee in a panic, believing Richie. In all years of syndication/reruns, I have not seen this part at all, but remember this part as a kid when this episode was brand new. Did such a part ever exist? (Near the end of the episode, Howard mentions the flying saucer people thought they saw was a weather balloon so I'm figuring so).