* AuthorExistenceFailure: Dominic Lucero was diagnosed with lymphoma after the first season, [[{{Determinator}} appeared in the third while undergoing treatment]], and died a month before the final episode was filmed. That last episode was made in his honor.[[note]]However, he was still listed in the opening credits for the rest of the show at his insistence.[[/note]]
* [[DirectedByCastMember Choreographed By Cast Member]]: Several episodes were choreographed by Ivan Dudynsky.
* HeyItsThatGuy: One early cast member was then-little known [[GodIsLoveSongs Contemporary Christian]] singer Crystal Lewis.
** Depending on how much you liked Film/{{Newsies}}, there's four examples of this trope for you, since four cast members were in that film: Dominic Lucero, Ivan Dudynsky, David Sidoni, and Mark David. Although, for some, those four are the entire reason they started watching the show, which may turn it into a JustHereForGodzilla. (Music/MichaelJackson fans might also remember Lucero as one of the dancers from Jackson's Bad World Tour.)
** Jennifer Cihi performed the theme song and joined the cast in the third season. She is also known for performing songs and being the singing voice of Anime/SailorMoon for the English soundtracks.
* HideYourPregnancy: Averted; Julene Renee was noticeably pregnant during the last few episodes, and gave birth to her baby just after the final episode was finished.
* KeepCirculatingTheTapes: Good luck finding ANYTHING from this show. If you find a collection somewhere, please let the rest of us know!
** The entire first season has been uploaded to Website/YouTube by various people, as well as episodes from seasons 2, 3, and 4. It just takes digging.
** Kudos to [[https://www.youtube.com/channel/UCK5wCaAO8K8Vm1Ias4VfGCw drumstix555]] for uploading almost the entire show to Website/YouTube in near-pristine quality. Unfortunately for us, he has one tape that's damaged beyond repair, and it contained a good chunk of Season 3 and a few missing episodes of Season 2. (Some of those season 3 episodes have been previously uploaded by other users, in multiple parts[[note]]the only season 3 episodes that don't seem to be on there in their entirety are the money, taking care of the elderly, puberty, and gossip episodes[[/note]].)
*** Another user has [[https://www.youtube.com/watch?v=6QD4ZUfgNzQ the first date episode (which isn't on drumstix555's channel) in perfect quality]]. Even more notably, it's from the episode's first airing on SNICK in 1992 (complete with EyeCatch bumpers).
** The first two episodes were also released on VHS, as part of two SNICK compilations.
* NoBudget: Cardboard props and so forth.
** Which may have been the point. There's a good chance that the producers were going for StylisticSuck, giving it a "bunch of friends putting on a show in their trainyard" feel.
** Actually, the show was Nickelodeon's most expensive to produce at the time, because of the complexity and specialization of the props, even if they were made of cardboard. Most of them, cardboard televisions aside, couldn't be used for more than one episode, as props were typically specific to an episode. Occasionally, things like a hat with socks on it for dog ears will pop up in multiple episodes (the Abusement Park and School Play episodes, for example), but most of the time, props were too specific to use more than once.
* ScrewedByTheNetwork: Not exactly, but Nickelodeon pretty much hated the show. Roundhouse's writers narrowly avoided getting screwed in the early seasons, with Nickelodeon supposedly preferring certain cast members over others and getting sketches cut that the writers wanted kept in. (They ended up moving production out to California to apparently avoid more of this. Still got screwed in the end.)
* TwoferTokenMinority: Cast member Micki Duran is of Hispanic, African American and Choctaw descent.
* WhatCouldHaveBeen: According to the ''Easychair Expressway'' fansite, the Honda Accordion bit from the GrandFinale was originally written for the divorce episode, in season 2.
* WrittenByCastMember: John Crane, who usually plays Dad, wrote several skits and songs for the show.