King of the Hill
was a simple show about a simple man (though, as we've noted before, there may be some complicated relationships
hidden in plain view).
The animation style itself is most notable for how plain it is. But the amount of detail that went into that veneer of simplicity is mind-boggling. The guide used by the show's storyboard artists had rules about tumbleweeds and high fives, and even guidelines to keep animators from making Peggy too sexy: