I have just recently been introduced to this show by a friend. Of all the programs on Adult Swim, the only one that really made me laugh was Robot Chicken. I never understood Aqua Teen Hunger Force, perhaps because it's humour is specific to American pop culture for which I have no reference being a Brit. Or it could just be because it's a bunch of random stuff happening for no apparent reason, featuring jokes that have little or no craft behind them. Whatever the case, I've now find my favourite Adult Swim cartoon.
Not seen it? I suggest you seek it out. An excellent show with plenty of off-the-wall-whilst-well-written humour, featuring classic Hanna-Barbera characters in new and unusual scenarios. Just finished watching the first two series and I'm still chuckling to myself at work during random flashbacks to episodes watched the previous night. Top stuff!