* ActorAllusion: One episode has Penny communicating with a tiger similar to Film/DrDolittle. Her voice actress Creator/KylaPratt played the daughter of the famous doctor in the modern film version, who also inherited his gift in a later sequel.
* CompletelyDifferentTitle: In France, it was titled "Cool Attitude".
* HeAlsoDid: After this show ended, Bruce Smith and his team went on to make ''WesternAnimation/DaBoomCrew''. [[ClicheStorm …Yeah.]] People who have seen both shows often wonder what in the world happened.
** Also, Smith was an animator on ''WesternAnimation/BebesKids''. Make of that what you will.
* HeyItsThatVoice: This show heavily relied on this trope. TheOtherWiki states that the show holds the record for having the most guest stars in an original Disney series.
* KeepCirculatingTheTapes: TheMovie is only available on DVD, and while the first season of the series is available on iTunes, Creator/{{Disney}} has no plans for any other releases.
** Even moreso is the original pilot. It was rarely shown and it is very hard to find images of it online.
* NoExportForYou: The show hasn't aired in Sweden, Norway, Denmark, Finland, Japan, Poland and Turkey, despite the crossover episode with ''WesternAnimation/LiloAndStitchTheSeries'' having aired in those territories.
** MarthDebutedInSmashBros: The series never aired in Russia either, but the movie did... over 10 years after it originally aired in the US.
* WhatCouldHaveBeen: The show was initially pitched to Creator/{{Nickelodeon}}.
** In the original pilot, Dijonay's name was "Delinquinetta".
* WriteWhatYouKnow: Creator Bruce W. Smith based Oscar and Penny on his own experiences as a father.
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