The introductory painting for "Silent Snow, Secret Snow" can be glimpsed hanging on an office wall in the "Identity Crisis" episode of "Columbo." (Season 5)
David Carradine ("The Phantom Farmhouse") and Radames Pera ("Silent Snow, Secret Snow") would both go on to co-star on "Kung Fu" the following year.
Filming "The Phantom Farmhouse" and despite the lighting difficulties, according to Szwarc,"they had problems with the dogs. He had those three huge dogs, but they were like sheep! They wanted to lick everybody, so they wouldn't scare anyone"