Continuity mistake: When Louise is talking about her mother's Parkinson's, the camera shot from behind her shows her left arm folded up in front of her with something red over it - but the shot from the other side shows the red item draped over her right arm.
Continuity mistake: Dr. Romano hands Lucy a pen so that Valerie's mother can sign a consent form. Lucy puts her hand on the pen and then the shot changes and we see her put it on the pen again.
Visible crew/equipment: When the pedestrian Michael hit goes into the trauma room, when the ER doctor closes the door for a brief second the camera is visible.
Answer: It was in "Chaos Theory", the first episode of season 9 (time code 00:13:55).
Super Grover ★