Continuity: "Mr. Monk Gets Hypnotized": As his hypnosis session begins, Monk's arms change back and forth between takes, from resting on the arms of the chair to folded across his stomach.

Continuity: "Mr. Monk's 100th Case": At the end, when he is talking to Natalie about quitting since he has solved an even number of crimes, Monk is peeling an orange. The peeling that he is letting dangle from the orange changes from above the counter to touching the counter and back to above the the counter, depending on the shot.

Factual error: 7.5 "Mr Monk is Underwater": Monk borrows Lt. Albright's sidearm to prove a point. All weapons on a submarine are locked in a small arms locker until needed, not carried around by officers. Further, medics are traditionally not issued firearms.

Continuity: "Mr. Monk Gets Hypnotized": The five dollar bill Monk is holding up instantly reverses itself between takes. It also disappears from his hand as he's backing toward the door, then reappears in the shot after that.

Continuity: "Mr. Monk Gets Hypnotized": At the end, a round dish sitting on the island counter in Monk's kitchen disappears and reappears every time the camera angle reverses.

Factual error: 7.5 "Mr Monk is Underwater" Commander Whitaker asks what Monk and Natalie are doing on his "ship". No submarine commander would ever refer to his vessel that way. He would refer to it as his "boat". This is not a character mistake; the terminology is an iron-clad navy tradition.

Factual error: 7.5 "Mr Monk is Underwater": The standard issue pistol for the US Navy is the 9mm Beretta 92F, not the Walther P38 as shown.

Plot hole: It makes no sense why the police haven't done the most obvious thing and checked for fingerprints on the murder weapon (the knife). It would not only back up the detective's claim that he did not stab the victim (he never touched the knife) but would have given the police a major clue to finding and prosecuting the murderer.

Factual error: The woman who accuses Monk of stealing her necklace shouldn't have the necklace inside the asylum in the first place. For both safety and insurance reasons, patients in mental facilities aren't permitted to keep any potentially harmful jewelry, including pins, broaches, earrings, belts, beads and necklaces.

Continuity: It's Spring in San Fransisco in this episode: warm with light rain and people outside in shirtsleeves. That is, until Monk goes to visit Kelly, when it suddenly becomes Winter. Everyone's bundled in heavy coats and it's sleeting. After Monk leaves Kelly's house, it becomes Spring again.

Continuity: In the opening scene, the man with the date pulls the gun on the mugger with his right hand and fires one shot. The camera angle changes as the remaining shots are fired and he now has the gun in his left hand and is standing in a completely different stance. During the recap of the crime at the end of the episode, it shows him firing all the shots with his right hand.

Continuity: When Sharona is having dinner at the restaurant and asks her date, "Have you ever been married?", she puts down her drink and lets go of it. When the shot changes she is putting the glass down again and holding on. In the third shot her arms are folded.

Continuity: Sharona tells her sister that Monk needs the guest room because he "doesn't sleep on couches," but in "Mr. Monk and the Marathon Man," she had to stop him from taking a nap on the victim's couch.

Audio problem: Sharona and Benjy are forbidden access to their damaged apartment building. The policeman tells them to call a certain emergency number, but when he says this, his lips aren't moving.

Continuity: After the quake, all but one of the art pieces have fallen out of the Rutherford's display case and lie shattered on the floor. But seconds later, when Christine pushes the cabinet over, most of the broken items have vanished from the floor.

Continuity: When Sharona and her sister are talking on the couch, her sister is playing with her hair when she asks "Are you in love with anybody?" The shot changes to Sharona answering from over her sister's shoulder and her sister's hand is in a fist and pressed against her head.

Revealing: In the scene where a man is streaking, he is carefully made to look naked. But when he is running through the park, there is one shot where you can see some black underwear.

Continuity: In the scene where Willie Nelson is rehearsing, his pigtails change position depending on the shot.

Continuity: In the closing scene with Willie Nelson, there are a few times when the clarinet music changes notes, yet Monk's fingers do not move. There is also one point where Monk takes a breath mid-note.

Continuity: Before meeting Willie Nelson on his tour bus, Monk is outside the radio station. When a car comes past the shot shows from inside the car and we see Monk putting his right hand up to his forehead and touching it. In the next shot his hand is now further down his face and is not touching it anymore.