At the end of the episode, the three actors break the fourth wall. They look straight at the camera, Stephanie Zimbalist says "joyeux Noël", Pierce Brosnan says "Feliz Navidad", and Doris Roberts says "Merry Christmas everyone".
Of the Five seasons of the show, this is the ONLY Christmas episode.
Three years later Die Hard [1988], a movie about thieves taking hostages in a tall high rise building on Christmas Eve, would be a smash hit. Tom Everett (Prancer) had a role in Die Hard 2.
Don Gordon, who plays the crazed criminal Anthony Delgetti, played Police Detective Delgetti in the 1968 crime thriller, Bullitt, starring Steve McQueen.
Steele references "The Taking of Pelham 1-2-3." Doris Roberts played the mayor's wife in that movie.