The Director of this episode, James Keach, was married to Jane Seymour for 20 years (1993 - 2013).
Matthew's son and daughter are played by Sean and Katie Flynn, children of Jane Seymour.
Brian asks multiple times if it will snow. The consistent response is "if it gets cold enough". This is an inside joke. They are filming in California rather than Colorado.
There is a secondary story line about a baby being born in a manger.
Colleen is wearing a purple dress for the Christmas Eve event. Micheala intends to wear a purple dress for Christmas Eve in the Christmas past scene.