On the episode where it is Christmas time, and the Waltons are taking care of two little English kids, Tess and Pip, at the very end where John Boy is narrating, he says, "It was the last Christmas ever that we would all spend together." But earlier in the movie, Mrs. Walton reads in a letter that John Boy won't be able to make it for Christmas! And nowhere in the movie do you see him at any time.