Continuity mistake: When JD is talking to Carla in the cafeteria, she tells him that it's nearly 5:00. But up to that point, you can see the bottom half of the clock behind him and the hour hand is not visible. It only appears after she tells him the time.
My Journey - S3-E2
Continuity mistake: When Dr.Cox is talking to Eliott his stethoscope is inside his coat on left side. But before he starts jumping up and down the whole thing is out, but not due to the jumping. (00:36:50)
My Journey - S3-E2
Continuity mistake: When Sean is talking to Betty the seal his arms go from being by his sides to clasped in front of him between shots.
Continuity mistake: When J.D. marks on the wall, Its not the same mark when the Janitor says "You drew on the wall" the second time. The first mark has a curve near the top, The second one bends in the middle. (00:01:10)
Continuity mistake: When Sean says he doesn't see J.D. as a threat his right hand is gripping the handle of his coffee cup. But when he takes a drink he's gripping the whole cup. Not the handle. (00:19:40)
Continuity mistake: When Elliot goes to the bus depot to stop Shawn from leaving, she jumps out of the car leaving the car door open. When she's on the phone with Shawn, the car is behind her and the car door is closed. As the bus pulls away, the car door is open again. (00:19:30 - 00:20:25)
My Brother, Where Art Thou? - S3-E5
Continuity mistake: When Dan come in and knocks J.D to the floor, the front door is wide open. But when Turk joins the dog pile the front door is closed. (00:02:05)
My Brother, Where Art Thou? - S3-E5
Continuity mistake: The silver drink shaker moves closer to the orange juice container and away from it a couple of times through out the scene with Turk, J.D. and Dan. (00:04:50 - 00:05:30)
Continuity mistake: During the scene where Ted is explaining to Dr. Kelso about the stethoscopes being too tight, Ted is holding one in his hands. When seen from Dr. Kelso's point of view, the earpieces (white) are close together but when seen from the side they are crossed far past each other.
Continuity mistake: When Carla enters through the window look at J.D's water bottle, the Dasani label is visible. However, when they cut back to Eliott and J.D. the label is now blacked out. (00:12:15)
Continuity mistake: The first time Turk and Cox are talking in the gym, watch the man on the machine behind Cox. During the first shot of Cox, the man's face is obscured by the pulley for a pull down bar. Cut to Turk then back to Cox and the pulley has moved enough so that the man's face is now visible. Cut to Turk and then back to Cox for the third time and the man's face is blocked again. The viewing angle of Cox is the same each time so it is not a camera angle difference.
Continuity mistake: When Carla & Elliott get into the back seat of the vehicle after attempting to hire a male prostitute, you can see them clearly in the close shot. In the next (long) shot, when it is revealed to be a police cruiser, there is a cage between them and the camera. This cage disappears again in the next close shot.
Continuity mistake: The defib paddles Dr. Cox uses change from being in the slots, to on top of the machine a couple of times. (00:15:40 - 00:17:10)
My Catalyst - S3-E12
Continuity mistake: Jordan's right arm goes from holding her spoon to being folded close to her a couple of times. (00:19:20)
My Catalyst - S3-E12
Continuity mistake: While Turk is talking to Elliot note that Turk's hot sauce bottle changes position without being touched. (00:19:50 - 00:20:20)
My Catalyst - S3-E12
Continuity mistake: When Ted falls off the roof you should be able to see the garbage bags he falls on, But they're not there while he's falling. You see nothing but the roof top below. (00:22:05)
Continuity mistake: Dr. Casey's sandwich has a red topped tooth pick in it, but disappears from the sandwich in next shot to the side of his plate without seeing him taking it out. (00:12:45)
Continuity mistake: The napkin on Dr. Casey's cup turns a quarter turn while talking to Elliot before he gets up from the table. (00:12:45)
Continuity mistake: The pen on the counter Dr. Casey used changes positions a couple of times while talking to J.D. (00:17:15)
Continuity mistake: When Carla tells Turk off the second time (for not standing up for her) she is to the right and Turk is on the left, but when she leaves she walks to the right and passes Turk as he says "You're absolutely right baby and I apologise". This is because they re-used the shot from the first version of that day where Turk was standing on the right after he stood up to Kelso.
Answer: No, it was a fake, they used a stamp.
It is real.