Continuity: When Dr Cox is with Eliott and Turk, his stethoscope changes from under his coat to over it between shots.

Continuity: When Turk places the ring box on Ralphy's tray it changes position between the shots.

Deliberate "mistake": When the janitor pulls the plug on the phone, there would actually be nothing but dead air because the janitor just pulls the plug on the handset, not the whole phone. So they added a dial tone for comedic value.

Continuity: Elliot, Carla and JD are in the cafeteria, JD has an orange drink that's flat on the table with his hands around the base, the shot cuts to showing his front and the bottle is now tilted towards him with a hand around the top.

Continuity: When Turk is holding the chili-dog, it changes from one handed to two handed and back between shots.

Continuity: When Elliot is talking to Carla about Paul the clock in the background reads 15:10 but at the end of the conversation it says 15:30 even though the conversation lasted about 20 seconds.

Continuity: Laverne changes places from standing next to Dr.Cox to way left of the counter a couple of times.

Continuity: When Laverne does a slam dunk, you can see that the ramp leading to the hospital main entrance has no-one standing on it or in front of it. But before and after the slam dunk you see see two doctors with a basketball on the ramp, and Franklin standing remarkably still, with a camera, in front of it.

Continuity: When J.D. fantasizes about meeting Turk at the dorm for the first time, the shot has been flipped. Look at the signs on the doors.

Continuity: When J.D lends his nasal spray to Doug in the final scene Doug returns the spray to J.D after putting the cap back on. In the very next shot as J.D says "Don't bogart my nasal spray", J.D uses the spray without putting on the cap, and you can see the cap placed on Doug's tray.

Continuity: When the guy at the end asks for nasal spray, the black dude has a fork in his hand, but when the shot changes he is playing with a Fanta can, and then the fork again.

Visible crew/equipment: During the scene where JD is fantasizing about dancing with the German patient to "99 Luft Balloons," a crew member's green-sleeved arm is momentarily visible throwing balloons into the shot.

Continuity: When Turk has his hand up in the operating room, it varies between having blood on it and not between shots.

Continuity: The whipped cream on Eliott's Jello goes down between shots.

Continuity: The amount of creme running down Eliotts glass changes between shots.

Continuity: The salad on Eliott's fork changes from purple to green and back to purple between shots.

Continuity: Elliot's "Naked" drink changes directions a few times without her touching it while talking to J.D.

Continuity: Laverne's soda can goes from being on her notepad to on the table between shots.

Continuity: When Eliott and Ted are in Ted's office, the pen in his hand changes position between shots.

Continuity: Dr. Cox's stethoscope is tucked inside his coat on the left side. But when he turns towards Carla, it's out from under his coat completely.