This served as an episode of both "Blue's Clues (1996)" and "Blue's Room". However, this would be the series finale of "Blue's Clues" before the launch of "Blue's Clues and You! (2019)". On top of that, this episode also featured the last set of clues and the last use of the handy dandy notebook and thinking chair. And while this was an anniversary special, not all of the main characters returned. Slippery Soap, Sidetable Drawer, and Periwinkle were all absent. Even Steve did not make an appearance, however you can find references to Steve such as his notebook.