Melissa Gilbert actually had a cast on her arm throughout the entire episode, compliments of an ice skating accident that occurred shortly before the episode was filmed. Unless you are aware of it beforehand, you probably don't even notice that Laura is wearing thick shawls, wrapping blankets around her whole body, or having the camera show only her head and shoulders throughout the episode. In previous interviews, Gilbert has joked that the one time her character had the opportunity to hold a baby for pretty much the whole episode, she couldn't even really hold her - the baby just kind of rested on her cast.
The studio backlot used for the town Charles visits, looking for Anna, is the same one that would be used for "Winoka" in series 5.
First appearance of Dan McBride, the restaurant complaining customer who riled up Nellie, appearing as the bell church cleaner.