Reginald VelJohnson reprises his role as police Sgt. Al Powell from the movie Die Hard (1988) in response to a hostage situation inside the Buy More store at which Chuck works.
Another reference to Die Hard (1988): when Chuck closes down Buy More, Beethoven's Ode to Joy can be heard, similarly to the scene in Die Hard (1988) in which the terrorists seal off Nakatomi tower.
As of this episode, John Casey only has nine toes (and it's revealed that Jeff only has eight).
Jed Rees's character Ned Ryerson shares the same name as Stephen Tobolowsky's character in Groundhog Day
In addition to playing a cop in Die Hard (1988) and Die Hard 2 (1990) with the same name as his character in this episode, Reginald VelJohnson also played a cop in Family Matters (1989).