The compound Fulcrum is holding Chuck's dad (Scott Bakula) in is under an old drive-in theatre call the "Starbright". On Quantum Leap (1989) Sam Beckett (also Bakula)'s previous Project before Project Quantum Leap was Project Starbright.
The ending scene where Morgan picks up Anna and carries her toward the door to the applause of the BuyMore workers is a reference to the end scene in the movie "An Officer and a Gentleman".
The scene where Chevy Chase stands in front of the drive-in movie screen and twice says "Can you dig it" is a reference to the scene in the movie "The Warriors" when Cyrus yells it to the crowd of gang members.