South Park

South Park in the 'Greatest Cartoons of All Time' league? Genius pick. This isn't your grandma's cartoon—unless she's into satirical genius and a bit of controversy. Fans get a wild ride with every episode, where no topic is off-limits and every boundary is pushed, sometimes off a cliff. Try explaining to someone why you're laughing about a talking piece of poo without sounding insane. It's the kind of show that turns watching cartoons into a full-contact sport.