I've not seen Family Guy in a long time, except for a clip here or there, or some of the compiled clips on youtube. Reminds me I need to buy a dvd.
I find the show funny and it's hard to isolate a favorite clip. Among some that are not yet mentioned here is the my black son. Another is where the father (I don't recall all of their names) goes over to the house of a kid who I think beat up or was a bully to his son, he beats him up after being taunted/teased a bit, goes home talks to Brian and when his wife answers the phone he goes out and climbs the tree in their front yard.