Brian and Stewie travel back in time to the events of this episode and appear in the footage from it - either inserted into the old footage or the old footage was reanimated - with some of the original audio from the episode used.
An animated version of it is seen on tv.
Chris watches this show
Jerry Seinfeld appears to Seinfeld style music.
Stewie says "You know Mother, life is like a box of chocolates, you never know what you're going to get. Your life however, is more like a box of active grenades!" The first part of the quote comes from the movie Forest Gump.
Peter throws money from a blimp during this Super Bowl
The gag where Peter gets drunk on the communion wine is a clip from this episode.
The guys watch a pornographic movie at a party, titled Assablanca
The Griffins watch an episode of The Brady bunch on TV where Greg gets thrown into a pit of snakes
The "The Bicycle Man" episode is spoofed in a cutaway gag and Peter identifies it as his favorite episode of the show.
They watch an animated version of this in the cinema which ridicules it.