It started with the Simpsons, that was the first 'cartoon' I could watch without feeling too childish as a teenager. Then for me came Family Guy, which rocked my world. The way it always goes that extra few seconds, like when Peter or something bangs his knees and sits there holding it - priceless.
At the time I didn't really get South Park, until I happed to watch the movie, then the whole thing fell into place and I couldn't get enough. American Dad is just the icing on the cake, just have to love Roger - his voice always reminds me of the Hooded Claw. Especially now that he's kinda extra strength nuts and all...

ATB,
Rich