Family Guy clone? Maybe...
I can certainly see how people thing of this as a wannabe Family Guy. It definately has a similiar feel to it, and that may even be intentional, but stolen jokes?
I've watched many reruns of Family Guy on Adult Swim, and I've yet to see a single joke in the Waterman series that I'd say was "stolen". I thinks it's just that both series have the same type of vibe to them.
Although I'm not the biggest fan of Waterman (I suppose that not all of the jokes appeal to me personally), it's a very well put together series with some good life to it. I especially love the Transformers references here and there. All I can say is just keep doing what your doing, cuz you doing fine.
P.S. - Hehe, the armidillo went up in flames...
...sorry, random blurb