Mr. Monk Goes to the Carnival - S1-E5
Other mistake: Kitty, the killer, is seen running to Gitomer after Lt. Kirk leaves him. She is supposedly running to stab him, but you can see that both of her hands are empty as she dashes to his side.
Mr. Monk Goes to the Bank - S6-E12
Continuity mistake: When Monk is trying to convince the old woman to use the other pen so the ink in them will be even, in the shots from behind him, the pen's chain is hanging down below the counter. In the shots from in front of him, the chain is pulled taught. (00:23:45 - 00:24:15)
Mr. Monk Meets His Dad - S5-E9
Factual error: The runaway truck ramp has no advance signage (e.g. Runaway Truck Ramp Ahead 1/2 Mile) as real runaway truck ramps do. It has no loose sand to slow down the truck's wheels. And it doesn't point uphill as a real ramp would.
Mr. Monk Goes Camping - S8-E12
Audio problem: "Mr. Monk Goes Camping": When Monk sees the bear, his scream is too-obviously dubbed over with a woman's voice. (In all the previews and commercials for this episode, however, he's shown screaming in his own voice.) (00:27:05)
Mr. Monk's Other Brother - S7-E10
Factual error: In the scene where Monk is making pancakes in his kitchen, he is using a stainless steel spatula on a teflon-coated griddle pan. Mr. Monk has OCD and would never risk scratching his pan with a metal utensil.
Mr. Monk Is At Your Service - S5-E12
Continuity mistake: When Monk is inspecting the table ahead of the luncheon, he reaches out to straighten a crystal on the chandelier. The shot cuts to two people in the corner of the room, and the woman in this shot puts her hand on her forehead. At the right edge of the shot, you can see Monk in front of them straightening a plate on the table; however, he was inspecting the chandelier from the side of the table opposite these two individuals. (00:18:25)
Mr. Monk and the Red Herring - S3-E10
Continuity mistake: When the coffin Monk is in is opened, he has candle wax on his hands. In the next shot, there is no candle wax.
Mr. Monk Goes to the Asylum - S1-E6
Visible crew/equipment: When Monk is on the roof and helping the guy not to fall, you can see that he is tied off with a rope.
Mr. Monk Takes His Medicine - S3-E9
Visible crew/equipment: When Monk is talking to the two patrol officers about the suicide and walks down the street, the backlot trailers and equipment are visible around the corner of the building and you can also see a set golf cart. This is supposed to be the street that the shooter and biker drove down earlier in the episode. (00:07:13)
Mr. Monk and the Man Who Shot Santa - S6-E10
Other mistake: When the star of Bethlehem is stolen, the shots are reused from episode 4-13, with a flail used to breach the glass case, which isn't present in this episode.
Mr. Monk and the Other Woman - S1-E8
Audio problem: When Monk finally turns around at the funeral to tell the old man behind him to be quiet, you can still hear the man coughing. But the man's face is still, and his mouth is not open, and he isn't making the sound.
Mr. Monk and the Buried Treasure - S6-E6
Continuity mistake: In the captain's office, Randy is holding his cup with both hands and he states that he has a Motorola phone in his pocket. He begins to turn to his left to expose his suit pocket jacket. In the very next shot, which is a wide angle of everyone, he is beginning his turn again so Natalie can retrieve the cell phone.
Mr. Monk and the Buried Treasure - S6-E6
Continuity mistake: At the end of the episode, when Dr. Kramer and Monk are talking, Dr. Kramer is hunched over listening to Monk. In the very next camera shot, with the camera pointing at Dr. Kramer, he is sitting straight up and just finishes crossing his arms. A couple of seconds later, it switches back to Monk and you can see Dr. Kramer hunched over again and arms uncrossed.
Mr. Monk and the Very, Very Old Man - S2-E5
Continuity mistake: When Stottlemeyer moves the snake, the pinecone falls on the ground. The next scene, where Monk is on the table and talks to Stottlemeyer, the pinecone is back on the shelf. (00:25:26 - 00:26:36)
Mr. Monk Takes Manhattan - S3-E1
Deliberate mistake: After Monk and Sharona speak to Gratnik in Dumbo, they take the subway back to Manhattan. While Monk is sobbing, in the first exterior shot the "A" train slows into the 42 St station in Manhattan; note the "A" at the left with the driver on the right, as well as the "42" station sign not reflected backwards, all revealing a flipped shot. Then it's the "C" train when it stops, with Monk and Sharona back in Brooklyn, even further now at the "Hoyt-Schermerhorn Street" platform (used for TV shows and films), in lower Downtown Brooklyn. (00:21:55)
Mr. Monk Takes Manhattan - S3-E1
Visible crew/equipment: After Stottlemeyer swipes the keys to Captain Cage's office, when he and Disher enter Cage's office the reflections of the moving boom pole and camera operator beside the camera are visible on the glass window. (00:20:45)
Mr. Monk Meets His Dad - S5-E9
Visible crew/equipment: When Monk and his dad pull over to a diner there are visible feet behind the truck.
Mr. Monk and the Red Herring - S3-E10
Visible crew/equipment: At the science fair during the fire, a kid offers use of his fire extinguisher. When the captain goes to take it from him you can see a member of the crew handing it to him.
Continuity mistake: When Natalie arrives at the marina she is wearing a long trench coat but after she discovers the dead body in the water she is wearing a short one.
Mr. Monk Is At Your Service - S5-E12
Continuity mistake: When Natalie drops Monk off at the mansion, there is a bush in the background. Suddenly a gardener appears.
Answer: Notice also that in the opening credits scene when he is touching parking meters her also wipes his hand on his clothes each time he does it.