Dexter's Laboratory: Season 3, Episode 8
That Magic Moment/A Silent Cartoon/Opposites Attract (14 Jun. 2002)
"That Magic Moment" (9 minutes) Uncle Magic comes to visit the family and promises to make Dee Dee disappear in a trick. Dexter poo-poos his Uncle's world of illusion and makes Dee Dee disappear via science.
Writer:Genndy Tartakovsky (creator)