Some cartoons feel like they could keep going until the end of time, be they adult animated comedies or lovingly-rendered educational kids' shows.

This show just understood playground politics. Also, the “Ashleys” could have been inspiration for Regina George and her mean girls.

Here are 10 cartoons that should come back to television: 1. "Hey Arnold!" (1996-2004) We were able to relate to this show from when we were 7 well into our 20s, and it had an art form to it.

From The Owl House to Avatar: The Last Airbender, these animations prove that cartoons aren't just for kids!