Trivia: The Simpsons holds the record for most guest stars; it is also the only non-variety show to have had appearances from three former Beatles (Paul, George and Ringo).
Trivia: When the Quirks uses their noses to play a song to get rid of Koopa for good, they play the theme song from the video game The Legend of Zelda.
Trivia: The Latin lyrics used at the beginning are "Ecce homo qui est farba, qui est farba, qui est farba", which mean "Behold the man who is a bean". At the end, it's identical, but "Ecce" is changed to "Vale"; "Farewell, man who is a bean." Before and after the advert break (in the UK version), the lyrics are "Fin de partie primae" and "Pars secunda" - "End of Part One" and "Part Two".
Trivia: During the final 2 seasons of Saved by the Bell, most notably the season with Tori and the one following it, look for actor Casper Van Dien in the background of some episodes. He appeared in many scenes throughout the final 2 seasons as a random background extra, most notably in the locker hallway scenes. This was before he made it big in Hollywood.
Rock Enroll - S5-E13
Trivia: Towards the end of the show when they bring the cake out for Steve a crewmember walks past on the right of the screen.
The Disappearance of Mr. Davenheim - S2-E5
Trivia: David Suchet performed all the various conjuring tricks Poirot is trying to pull off. The illusionist in the theater show at the beginning is the late Patrick Page, real life stage magician and coach/consultant for the episode.
Revenge of the Evil Leaper - September 16, 1987 - S5-E17
Trivia: Thames, the third leaper, leaps in and out of scenes using the Star Wars blaster sound effect.
A Father and Son Reunion - S3-E21
Trivia: Paul Dooley and Jerry Van Dyke play father and son in this episode. In real life, Dooley is only three years older than Van Dyke.
Trivia: At the beginning of this episode, after the Crypt Keeper causes the mirror to break, he mentions that he just bought seven years of bad luck. This show lasted for seven years.