A Little Christmas Queer - S8-E9
Continuity mistake: Shortly after arriving at their mother's house, Will's brother, Sam, nervously excuses himself from a conversation with Grace. "Excuse me," he says, "I have to go get a ladder. There's a couple of bulbs out in front, and now it just says 'Happy Ho-days.'" However, exterior shots of the front of the house show no holiday lights whatsoever.