A couple I have not seen mentioned:
1)The scene where Peter drops the name of some old, obscure 18th century English guy in a reference and it cuts to that guy him sitting at a victorian table in his old English clothes and wig saying "You don't even know who I am..do you?". (Cracked me up)
2) Black Knight: "What's Your fat ass doing here?"
Cleveland on a Donkey: "He's my only means of conveyance, but I suppose I do spoil him"
3) The Brawl scene during the karate episode.
My Two Personal Favorites
4) Peter: Oh my god brian, there's a message in my alphabit soup. It's says oooooooooo...."
Brian: Peter, those are Cheerieos. (From the Indian Casino Episode)
5) Peter runs ove rthe Road runner, and says "Oh my god, I think I just hit something."
Cyote: No, you didn't
Peter: Are You sure?
Cyote: Just keep going (Or something like that
