Category:Episodes with recycled animation

All of the episodes that contain one or more uses of recycled animation, which are scenes and/or shots of previous episodes from the show that are used again, along with dubbing of new dialogue over the original.

This technique was very commonly used in episodes from Seasons 2 through 6 in order to save time and money in developing the animation for an episode. However, as of Season 7, it is no longer necessary to use this technique.