'South Park" learned the same hard lesson as 'The Simpsons'

When "The Simpsons" first hit television screens in 1989, it was clear who the star of the show was. The family animation placed pineapple-headed Bart at the center of its early episodes, and it didn’t take long for catchphrases like "Don’t have a cow, man" and “Eat my shorts!” to ingrain themselves in the minds of viewers.