Nickelodeonlaunched all the way back in the late 70s. Struggling slightly at first, the channel burst in popularity in the mid-'80s as the "First Kids' Network," and subsequently starting putting out classic cartoons and shows that still blow a lot of today's content out of the water. Shows like Rugrats, Catdog, iCarly, and All That, with their wit, layered characters, and flat-out humor, made Nick a powerhouse that's kept its dominance through the tests of time. And of course, no matter what the future holds, the channel will always be remembered for bringing SpongeBob SquarePants into the pop culture zeitgeist, where it has remained for the last 20 years, not only via new episodes, but also via its place in meme history. 

Without further ado, these are the best old Nickelodeon cartoons and shows.