Adventure Time made Flapjack obsolete. :/
For a very long time, Flapjack was the closest thing we had to a 90s cartoon. It's funny, dark, disturbing, and weird.
Unfortunately, now that Adventure Time exists, I don't really find any reason to watch Flapjack. The reason being that the relationship between K'nuckles and Flap is starting to get stale.
A show about 2 buddies, such as Adventure Time, in the long run, is much more interesting than a show about a jerky captain who treats everyone horribly. It's fun for a while, but eh.