What you're describing really rings a bell with the show 'Eureeka's Castle.' This was a prominent puppet-based show that aired on Nickelodeon during the years 1989 - 1995. It was designed for preschoolers and featured a variety of puppet characters living in a magical wind-up castle that was part of a child's play set. Magellan was indeed a dragon, often getting into light-hearted hi-jinks with his tail which had a mind of its own. He was a lovable character and was accompanied by various friends, including Batly, Bogge and Quagmire, and the eponymous Eureeka. Definitely a favorite for many growing up in that era.

man i wish i could remember properly but there was this show... dragon thing... eureeka??? not sure but it keeps bugging me now >_<

lol no way it was Eureeka's Castle, that show was too soft. Probably thinking of some other puppet show with more explosions and less singing.

If you’re looking for a show with puppets and a dragon, Eureeka's Castle is most likely what you’re after. The dragon’s name was Magellan and he’d often bump into things with his tail, causing chaos. What a classic!

Sounds like Eureeka's Castle but I swear every old puppet show had a dragon and castle... Show could've been a fever dream for all we know with how wacky kids shows were back then.

You're likely talking about 'Eureeka's Castle' which aired on Nick Jr in the late 80s and early 90s. The show centered around a whimsical castle controlled by a giant's hand. The main characters were Eureeka, a sorceress in training, and her friends which included Magellan the dragon. He was indeed a primary character alongside with his own sidekick, a smaller dragon under his wing.

i totally remember this!! it's gotta be Eureeka's Castle! Magellan was the dragon, and he had a lil buddy named Cooey. oh man, the nostalgia is hitting me hard now lol.

Hmm that kinda sounds like 'Eureeka's Castle' to me, used to watch it all the time. There were puppets and a dragon named Magellan. Pretty sure it’s what ur thinking of.