Not a very accurate review.
Outside of dumb guy, hot wife, and a talking pet, the similarities between American Dad and Family Guy end there. They don't even have a similar style of humor.
You mentioned in your description that TBS picked it up, but you didn't mention any of the changes that were made to the series (and the only change I've noticed is that they can say "shit" uncensored.)
All in all, your review sounded like you only watched a few episodes from the very first season.