'Adult' TV cartoons have been around long enough now that we're over the novetly of them, and can start asking questions like "are they any good"? In the case of Aqua Teen Hunger Force, the answer, happily, is an unqualified yep.
Here we have four major characters. The 'force' themselves - a thickshake, a bucket of fries, and a lump of hamburger meat, who ostensibly are some sort of crime-fighting trio (in fact this was just a way of getting the show on air. Nobody was prepared to greenlight a show about three pieces of fast food who essentially did nothing in particular, so the crime fighting theme was pushed - and then dropped after about three episodes).
Master Shake is basically a sociopath. He doesn't care what chaos or injury he causes even to his closest friends so long as he gets his selfish way in even the most trivial things. He's also an idiot, which makes his lies completely transparaent.
Frylock, (the packet of fries) is the responsible one, the father figure. He's a scientific genius, and the voice of reason in the series.
Meatwad is the lump of meat. He appears to be a juvenile, and is naive and gullible - though also capable of coming out with disconcertingly wry, intelligent lines at times. That is when you can even understand him, which I have to admit I can't, a lot of the time.
The fourth member, and my personal favourite, is Carl. Carl is a human, the next door neighbour. He is a forty-something, white-trash batchelor, a complete slob, and though he thinks his neighbours are freaks, he takes it all pretty laconically. When aliens from the future land in his yard, his response is likely to be something like a bored, sarcastic "yeah, this is great". One of my favourite Carl moments is where he is trying to pay a particularly seedy looking hooker with a huge jar of pennies, and when she refuses, bemoans that she is being un-American.
The plots in ATHF are often very random and nonsensical, jumping around with no concern for development or closure, and involving things like demonically possessed sandwiches, incredibly stupid space aliens, and ridiculous visitors of various kinds - none more silly than the 'Cybernetic Ghost of Future Christmas Past', who turns up in Carl's house to tell him why his swimming pool is filled with Elven blood, and goes into a ridiculous, lengthy explanation about it, which nobody is particularly interested in (he appears in a later season as a cybernetic turkey at thanksgiving, and makes even less sense).
ATHF has a level of silliness and surreality which approaches Britishness. Though it suffers a little from a rather tired undergraudate fondness for gore and 'shock', the funniness of the characters and situations ultimately win out, and make many episodes real treasures. A lot more original and enduring than its stablemates 'Harvey Birdman' and 'Sealab 2021', ATHF is now in it's fifth season, I think, and with the emphasis on strong characterisation and no concern with coherent plot, could probably continue to entertain until its creators get sick of it.