Cartoon Network is getting back to work on "Regular Show," with a new series and half-hour special premiering May 11.

Nostalgic cartoons have become harder and harder to revisit, but all 78 episodes of a Cartoon Network classic show are now finally streaming free.

Cartoon Network's output during the 2010s remains seriously underrated. Let's take a look at the network's greatest shows of that era and try to rank them.