Dexter's Laboratory

He skips grades. She just skips

Genres: Animation, Comedy, Sci-Fi & Fantasy

Counries: United States of America

Companies: Hanna-Barbera Productions, Cartoon Network Studios

Seasons: 4 (220 episodes)

Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her out, as well as his arch-rival and neighbor, Mandark.