Mr. Monk Takes Manhattan - S3-E1
Continuity mistake: There is a shot where Randy is trying to cross the police tape and an officer stops him, and he can be seen briefly arguing. However, when it cuts to the next shot, we see that argument happening again in the background, repeated. (00:07:20)
Mr. Monk Makes A Friend - S5-E11
Continuity mistake: Monk pushes aside a glass of milk on the table in his apartment. It is mentioned multiple times during the series that Monk is afraid of milk. He would never have any in his home, and certainly wouldn't have a neutral reaction to it. Also, the milk appears to have spilled a little as it was pushed, and yet in the next shot there is no milk on the table. (00:33:00)
Mr. Monk and the Red Herring - S3-E10
Audio problem: In the last line of the episode, the end of the word "spider" that Natalie is saying is cut off. It sounds like "spi." (00:42:05)
Suggested correction: I just watched the scene and I hear the whole word "spider."
Mr. Monk Takes Manhattan - S3-E1
Audio problem: The captain can be seen speaking, but no audio of him is heard. (00:14:10)
Mr. Monk Takes Manhattan - S3-E1
Revealing mistake: Monk's reaction to the gunshots begins just before the gunshots go off. (00:03:55)
Mr. Monk and the Game Show - S3-E8
Continuity mistake: When Monk visits Natalie's home, he stops in her room and the door opens left to right. At the end when he goes in her room again, the door opens right to left.
Mr. Monk and the Voodoo Curse - S8-E7
Revealing mistake: In the scene where the desks in the office are re-arranged, you can see that all the computers are on but none of them connect to any power point. NB: You can vaguely see that one of the computers is supposedly on Youtube while another is on Google Maps.
Mr. Monk Is on the Run (2) - S6-E16
Other mistake: Strangely, no one tries to stop Monk and Natalie as they walk through the centre of the parade and stand amongst the brigade.
Continuity mistake: There are two noticeable continuity errors during the police investigation in Cassie Drake's house. When Stottlemeyer is squatting next to Monk, Monk's right hand instantly changes position between shots. Also notice that there is no sheet over the body at the beginning of the scene, but a few shots later, suddenly the lower part of Cassie's body is covered with a sheet despite no forensic technicians being there to place it. (00:27:00 - 00:27:30)
Mr. Monk and Little Monk - S4-E8
Continuity mistake: When Monk is doing the summation for the present-day case with Sherry's ex-husband sitting in the chair, at first you can see that the painting is directly behind him. However, shortly thereafter during the summation, the painting has somehow shifted to the viewer's left and is no longer directly behind him. While it's plausible that someone could have moved the painting, it's just not believable since less than a minute has passed. Besides, would Lt. Disher (he was closest) really take it upon himself to move evidence?
Continuity mistake: The first victim's body and the floor around her are covered with pieces of glass, but the hole in the pane of glass is only about the size of a fist, not nearly big enough to leave that much glass on the ground.
Continuity mistake: When the gunman is shooting at the Jeep, he hits and deflates the near side rear tyre. His only shot after this wounds the sheriff. Yet when Monk is walking next to the Jeep, both tyres on this side are flat. Then when Monk starts going for help, the two tyres on the other side are now flat.
Mr. Monk and the Badge - S8-E14
Continuity mistake: During Monk's therapy session with Dr. Bell, his right arm instantly changes positions - from extended to bent and resting in his lap - between takes.
Mr. Monk is Someone Else - S8-E4
Continuity mistake: After the FBI agent asks Monk to go undercover, Stottlemeyer puts his hands on Monk's and Natalie's shoulders and starts escorting them to the door. When the shot cuts to a wider angle, he does this over again. (00:06:05)
Mr. Monk Makes the Playoffs - S7-E13
Revealing mistake: 7-13, "Mr. Monk Makes the Playoffs": The supposedly live stadium crowd outside Bob Costas' press box is a noticeably fake photo-backdrop. Not a single "person" in the multitude of thousands is moving. (00:40:10)
Mr. Monk and His Biggest Fan - S6-E1
Continuity mistake: When Natalie is talking to Marci at Monk's door, Natalie's position in relation to the door changes between shots. (00:04:45)
Mr. Monk and His Biggest Fan - S6-E1
Continuity mistake: As Marci is telling Monk about the picture she painted of him, Monk and Natalie approach her. As they approach, they change position between shots. (00:10:30)
Mr. Monk and the T.V. Star - S2-E12
Plot hole: Unless I missed something, the killer didn't wipe his prints off the knife he used to kill his ex-wife.
Mr. Monk Goes Back to School - S2-E1
Continuity mistake: Mr Monk completes his name on the chalk board at the beginning of class, but when class is dismissed the 'k' in Monk is incomplete.
Suggested correction: After he wrote his name, he says "what's up with that k?" and erases it. He started to re-write the k when he got hit by the eraser, leaving it unfinished.