Continuity mistake: During his discipline fiasco Ray sends the twins, Michael and Geoffrey, to their beds at noon. Depending on the camera angle, one twin (who lies closest to the camera) has his head atop his pillow at the middle of the bed, and in other shots that pillow is much further back near the headboard and the boy's head lies on the blanket.
Character mistake: In every episode, whenever Robert eats, he always touches his food with his chin first before he eats it, but when he took a cookie that Marie cooked for Raymond, there was no 'touching the chin'.
Revealing mistake: Marie brings a covered cake to Raymond's for Robert's intervention, but it's obvious there is no cake on the plate because her dress is visible through the dome covering the cake plate.
Answer: War.
By whom?
Edwin Starr.