After sending Meg out on an errand to pick up her grandfather , Lois continues to seduce Anthony , having been interested in him since Peter had begun insulting her about her advancing age . Quickly returning after forgetting the car keys , Meg discovers her mother making out with her new boyfriend on the couch . The bass jingle used extensively in the long-running NBC sitcom '' Seinfeld '' is then heard , with the scene pausing , before transitioning to the '' Jolly Farm '' studio . In a surprise visit to the Griffin family home , Julie unexpectedly appears when Stewie opens the front door . Expecting Julie to recognize him , he forgets that he is not dressed as Karina , causing him to hurriedly change clothing , while pretending to have an argument with his fabricated persona . A similar scene is featured in the 1993 film '' Mrs. Doubtfire '' , starring actor Robin Williams . Stewie and Jolly Farm make a reference to Pan Am Flight 103 , a Boeing 747 – 100 destroyed by a terrorist bomb over Lockerbie , Scotland , killing all 259 occupants . Large portions of the plane fell onto Lockerbie , which killed 11 people , escalating the death toll to 270 . A song features on Jolly Farm that explicitly describes debris from the newly disintegrated plane falling into Lockerbie , sung in the fashion of a nursery rhyme
Pan Am Flight 103
Pan Am Flight 103
Go, Stewie, Go!