In an earlier episode, Ma talks about how she and Pa became romantically involved. The characters in the flashback are played by different characters from those in the flashback in this episode. also, the house is completely different.
While Laura is pregnant in here, she was not pregnant during Christmas time with Rose. Rose was born on the fifth of December, in 1886, about three weeks before Christmas.
Caroline states that her father died young, and her mother remarried quickly afterwards. In reality, Charlotte Quiner did not remarry until about ten years after her husband's death. At the time, Caroline was in her teens, not a child, like depicted in this episode.
At 5:15 when Almanzo walks out into the snow the whole ground moves as he takes steps. Walking in snow does not make the whole ground around your foot move.
Christmas morning the snow is higher than the house door. The family goes up into the loft to watch Charles go to the barn to get the presents. As you look to the barn the snow is lower to the ground and the whole barn door is visible.
At the 10 min mark Holbrook said he was absolutely soaked but the only thing wet was his hat.
Hester Sue sings "Sweet Little Jesus Boy," which was written in 1934, nearly 50 years after the events of this story.
The wrapping paper on Caroline's gift from her stepfather wasn't invented until 1917.
While the family is eating Christmas dinner, the camera pans back to show a large amount of space from the table to the back wall. Several beds could have been made up and it wouldn't have been so crowded in the loft. Why didn't anyone sleep there?
If Caroline was gifted with the widow Thurman's old set of Blue Danube china, then it should have been on the table for the family holiday meal.
Hester Sue said she still had that doll, but everything was burned up in fire that destroyed the blind school.
In the flashback scene from Almanzo's childhood, the young Almanzo is played by a boy who has brown eyes. Almanzo, played by Dean Butler, actually has blue eyes.