Even though Cartoon Network — which was a subdivision of Hanna-Barbera — debited in 1994, I really consider The Powerpuff Girls, who were popular in the early 2000s, as the group that built ...

(Image credit: Hanna-Barbera Cartoons) 9. Dexter And Dee Dee Debuting back in 1996, Dexter’s Laboratory was about a boy genius named Dexter, who has a hidden laboratory that his folks don’t ...