The first actually original program on
Cartoon Network, focused on a boy genius with an
inexplicable accent of unknown origin who built a top secret
laboratory hidden behind a bookcase in his bedroom. Episodes typically featured his
inventions getting destroyed by his
ditzy ballerina of a sister, Dee-Dee, alongside the occasional confrontation from resident
antagonist, Mandark. The first season also had short superhero-themed segments that were quickly given
the boot.
I remember the days of Dexter's Laboratory, where not every cartoon needed to have an over-arching story; all you needed were explosions and monkeys!