Continuity mistake: Season 5-9, Episode: My Half-Acre. While Cox and Carla are telling Mrs Wilk about her treatment, the cardigan she is wearing is completely unbuttoned. When the camera goes for a closeup of her face, the cardigan is now buttoned right up to her neck.
Continuity mistake: At the beginning when Dr Cox is talking to Dr Kelso, behind Dr Cox is a women handling a green stuffed toy which she puts down. The shot then cuts to the son and wife of Dr Cox and then back. The woman has the stuffed toy back in her hands.