The show is about 3 young singers (Francine, Danny, and Roy) who are brought to a habitable asteroid in space by a puppet clown character named Baxter who pilots the "space coaster", a rollercoaster-like spaceship. The asteroid is populated by strange-looking, wise-cracking puppet characters like Goriddle Gorilla, Knock-Knock the bird, Edison the Elephant and Gary Gnu, who hosts the "The Gary Gnu Show". Baxter is forever on the run from M.T. Promises, a nefarious circus owner (played by a large, top-hatted puppet) who plans to re-capture Baxter and return him to the circus he worked at before he escaped. Each episode ends with a different life lesson, and various celebrity guest stars occasionally dropped by.
My most memorable segment of the show was Gary Gnu, a gnu newscaster who always said "No Gnews is Good Gnews with Gary...Gnu".