Actor Allusion: One episode has Penny communicating with a tiger similar to Dr. Dolittle. Her voice actress Kyla Pratt played the daughter of the famous doctor in the modern film version, who also inherited his gift in a later sequel.
Bad Export for You: The movie was originally aired in widescreen and later cropped for fullscreen. The DVD uses the fullscreen version.
He Also Did: A decade before the show debuted, Bruce W. Smith was the director and production designer for Bebe's Kids, notable for being one of only two animated features to star a predominantly black cast (he'd later animate for the other one).
Truth in Television: The episode that featured the Expy of American Idol had Wizard Kelly grossly cheat the voting so a pretty and more marketable winner would be crowned over the more talented but homely actual winner. This really does happen, producers of competition shows generally have a clause that allows them an incredible amount of voting power (sometimes over 50% compared to judges or call-in votes) in case they prefer a contestant over another (Last Comic Standing for instance, is a rather infamous example of this).