Channel Hop: The show went from PBS Kids (as part of a Sunday morning block "Bookworm Bunch", which featured an array of Nelvana cartoons based on books), where it comletely aired its two seasons, to a weekday morning block, "Ready Set Learn" on TLC and Discovery Family (when they were Discovery Kids). Reruns were last seen on Qubo in 2014.
Timothy, Charles, Fritz, and Claude are all voiced by females in the French dub.
Dub Name Change: In France the show and the original book version of "Timothy Goes To School" is called Timothée va à l'école
Timothy is called Timothée in France
The series is called 티모시는 학교에갑니다 (timosi neun haggyoe gabnida) in Korean
No Dub for You: Oddly enough the series did air in South Korean complete with the series getting translated in that language. The show still contains the English vocal track.
Keep Circulating the Tapes: Some DVD releases are difficult to obtain, but installments can be found online. For a while it wasn't airing on TV. It does now air on Qubo, though that can be hard to get. However, the full series is available on YouTube, although the episodes uploaded in Treehouse's official channel are blocked in some countries.
Recycled Script: The episode "Mama Don't Go" where it's Juanita's first visit to Hilltop School with her mother after moving was adapted as a Yoko & Friends book of the same name. Yoko takes the place of Juanita, but basically is the same plot as the episode.
Recursive Canon: Yoko's 1998 debut was supposedly her first day at school as well along with the 2008 book "Yoko Writes Her Name"
Urban Legend of Zelda: According to some sources, there appears to be an episode titled "The Butterfly Away", which is one of the first things that appears as an add-on when you start to google the show's title. However, given that the only source claims the episode premiered in August 2014, is completely false. The plot for this fictional episode involves Timothy and friends watching the migration of Monarch butterflies.