So I didn't know how to do this since it first started as a pilot series and split into two shows. So I will start with The Grim adventures of Billy and Mandy.Two kids named Billy and Mandy met the grim reaper who wants to take Billy's hamster. They beat him in a limbo game and now grim is their friend and they all go on supernatural adventures.
When the first episode came out it felt like the people who worked on it didn't knew what they where doing. Now with later episodes came, not only did it got funnier, but the writing too.
What this show was good at, was paradies. And this was during a time when paradies were going stale. Yeah they did Harry Potter, Dragon ball z, Star Wars, old time movie monsters, they even make fun of their own stuff. The best part is that some of the paradies become stable characters on the show.
And when a show grows stale over time. Billy and Mandy was one of those shows that never lost it's touch. I know it's not on any more but since Cartoon Network is doing remakes I think they should retell this story for the newer generation to watch.
But until then let's just watch some Billy and Mandy.