A Very Marry Christmas - S8-E9
Revealing mistake: As the Hecks check out the neighborhood Christmas lights, the same house with the same decorations are seen through Sue's side of the car several times, showing the background scenes of the house and decorations were replayed.
A Very Marry Christmas - S8-E9
Continuity mistake: While Axl is trying to explain his marriage to April to Sue, Axl's arms instantly switch back and forth from straight down to on his hips to straight down again.
