The Simpsons

The Simpsons is a long-running adult animated sitcom created by Matt Groening for the Fox Broadcasting Company. The show was considered one of the greatest TV shows of all time.

Why the series is good:

 * Adult animation in its purest form.
 * It's not only the longest running show on FOX,but also the longest running American animated show in general.
 * Had crossovers with Family Guy,Futurama and The Critic.
 * Clever humor.
 * Good voice acting.
 * Great animation.
 * Likeable characters.
 * Each of the Simpsons family have a very distinct personality.
 * Many hilarious running tags.
 * Memorable opening theme.
 * Their Treehouse of Horrors specials are funny,terrifying and unforgettable at the same time.
 * Bart's catchphrase,as well as Homer's.
 * Many famous celebrity guest stars.