Continuity mistake: When Peter and Jeanie are outside talking about their test results, there is an extra in a green sweater behind them who covers more ground than humanly possible from one shot to the next.
Continuity mistake: When Peter goes to his sister's picnic, he puts a pink box on the table and then sits in front of it. When his attention is diverted by a woman, suddenly the box is in front of him.
Continuity mistake: Carter is doing a nasogastric intubation on a emergency patient and suddenly the patient violently pukes blood all over Carter's medical gown, his throat and the lower part of the face, then a quick shot of the stunned nurses, and when Carter is shown again he is perfectly clean.
Answer: It was in "Chaos Theory", the first episode of season 9 (time code 00:13:55).
Super Grover ★