The Nicktoons Show is a Nickelodeon mini-series.
The first episode contained the history of the series. It showed SpongeBob SquarePants and other Nicktoons in search of a theatre. In season 2, the series carried Nick Jr. characters. In season 3, it had Thomas and Friends characters, as well as some Mr. Men characters. In season 4, it had some characters from Nick at Nite. Season 5 had TeenNick characters.