In the Boy Meets World episode where Corey punches the new teacher because he was hitting on his girlfriend, and the school has a trial. His girlfriend is present at this trial, and is wearing a purple sweater and matching top underneath. The sweater has a single button on the top. In one scene she speaks and the button is unbuttoned. She is then responded to and the speaker is filmed. When the camera goes back to her that little button is now buttoned!