mine is in the episode where Brian and Stewie are doing that parody of a Hope-Crosby road movie, and they sing that song that's a parody of the song Hope and Crosby sang in the movie "ROAD TO MORROCO".
I like the line "Until we hit sydnication, Fox will never let us die"!

When Dick Cheney is a Wal-Mart greeter and says Go Beep yourself
When Stewie is a puppet King Friday and the trolley comes along and he says,What kind of king has train tracks built along his castle,What is this,Mexico?