First season is disjointed, but teh second is where it picks up. Third is funny too, and 4th is where they are starting to burn out.
The things that made them funny were their intelligence and their difference from what was out there.
We are so used to unusual now, it does not strike us as weird to see a grown man in a diaper or walking along the street kicking their legs up in the air.
The political humor and reference is also stripped, leaving not much more than Fish Slapping and Spam.......
(Which I still like, mind you...
)