Mr. Monk Can't See a Thing - S5-E4
Continuity mistake: The firehouse's number is 53, and is seen on the various fire trucks throughout the episode. However, in an establishing shot at the opening of the episode, you can see letters for "Eng. Company 1" and "Truck Company 1" over the garage door. This is because Fire Station 1, located in Los Angeles, was utilized for filming.
Mr. Monk and the Bully - S7-E14
Continuity mistake: When Monk and Natalie are arguing at Monk's apartment, Natalie is wearing a ponytail. However, when the scene cuts to them standing in Fendle's hotel room, Natalie's ponytail is gone, and does not reappear for the rest of the episode. It's the same day, however, since she's still wearing the same dark black coat in both scenes. The most likely explanation is that the scene in Monk's apartment was filmed concurrently with Natalie's scenes in "Mr. Monk Makes the Playoffs" - the black-collared shirt Natalie is wearing in the second half of the episode appears to be the same one she wears in the previous episode, where her hair is in a ponytail for most of her scenes. (00:19:35 - 00:21:15)
Mr. Monk and the Bully - S7-E14
Continuity mistake: When Monk and the others are in the hotel room where the victim has been discovered, Monk puts a flower onto his suit. Natalie then takes it off the suit, but in the next shot (as he turns around) the flower is still on him.
Continuity mistake: When Mr. Monk enters the Sheriff's office, he is seen straightening out the shades on the front door, so that they are both even about half way down the window. When the Sheriff opens for the woman that was concerned about her relative, in the first shot the right window shade is now pulled all of the way down. Then, when the Sheriff closes the door, both of the shades are now even once again about half way down the window as before.
Mr. Monk and the Astronaut - S4-E14
Continuity mistake: When the Astronaut is talking to the kids in the classroom, the position of his arms changes from by his sides to folded between shots.
Mr. Monk and the Actor - S5-E1
Continuity mistake: The yellow-globed lamp on the movie set is hanging crooked when the actor playing Monk enters. He touches it, but doesn't move it at all, yet in the next shot, it's hanging straight. A few shots later, it's crooked again.
Mr. Monk and the Girl Who Cried Wolf - S3-E6
Continuity mistake: About midway through, the new nurse is sitting on Monk's kitchen counter eating a sandwich. She puts the sandwich down on a plate as she hops off, the shot switches to another angle to include Monk as she walks away, and the sandwich has suddenly jumped off the plate and is now lying on the counter a few feet away. Neither of them had time to pick it up or move it.
Mr. Monk and the Buried Treasure - S6-E6
Continuity mistake: When Monk and Dr. Kroger are in the session and Monk asks Dr. Kroger where he got his watch, Dr. Kroger puts his arm on the arm of the chair and his hand across his mouth. From the back, he has his hand on his cheek, but from the front again it is back on his mouth.
Mr. Monk and the Captain's Wife - S2-E14
Continuity mistake: In the scene where Sharona returns the dog, she opens the gate, turns around and closes & latches the gate. They even make a point of showing the latched gate before she is on the porch. As she is talking to the owner, you see the gate behind her open and then closed between shots. She had latched it, so all scenes should have shown it latched.
Mr. Monk and the Paperboy - S2-E10
Continuity mistake: When Monk says "I can bench 200", you can tell he has his arms by his sides, but in the next shot, his hands are held up at the level of his waist. (00:12:15)
Mr. Monk Is At Your Service - S5-E12
Continuity mistake: Monk finds the magazine from which the butler cut out words for his blackmail note, and matches a scrap with the word "Police" on it to the article it was cut from - only the left and bottom edges of the scrap don't conform at all to the hole cut in the page. They haven't been trimmed more. In fact, the whole piece is much too large to fit into the space. (00:36:30)
Continuity mistake: When Natalie props the get-well card up on Monk's bureau, it's partially open. The moment the shot cuts to a different angle, it's completely closed. (00:10:15)
Mr. Monk and the Big Game - S5-E3
Continuity mistake: During a 30-second timeout, the scoreboard in the background is counting down the time. As the scoreboard hits 12 seconds, the shot changes to Mr. Monk and the team huddle. The scoreboard appears again in the following shot, for the remainder of the timeout. When the scoreboard reappears, the clock has more than 12 seconds on it.
Mr. Monk and the Daredevil - S6-E7
Continuity mistake: Monk drops the harmonica onto the coffee table, and it lands in a horizontal position. Monk doesn't touch it again, but it moves to a diagonal orientation and then back to a horizontal one between takes. (00:18:15)
Mr. Monk Is On The Air - S5-E13
Continuity mistake: As the murderer is arrested at the end, the collar of his jacket changes from turned up in back to turned down, etc., several times between takes. (00:39:30)
Mr. Monk and the Secret Santa - S4-E9
Continuity mistake: When Alice confesses to the murder in her kitchen, a large green plastic bowl that's been sitting on the counter disappears between shots. (00:38:05)
Mr. Monk and the Captain's Wife - S2-E14
Continuity mistake: In the pre-credits sequence, Karen attaches a clip to the right side of Leland's shirt, but a few seconds later, there is none on his right side. They are all on his left side. They also disappear and reappear.
Mr. Monk and His Biggest Fan - S6-E1
Continuity mistake: Ringel closes the blinds, then turns and walks away from the window. After a brief shot of Monk and Marcy, Ringel turns and walks away from the same window again. (00:34:40)
Mr. Monk and Little Monk - S4-E8
Continuity mistake: In the flashback scene of the kids in the school hallway, the autographed photo of Patty Duke disappears and reappears twice on the inside of Little Monk's locker door as the camera angles change.
Mr. Monk Is on the Run (2) - S6-E16
Continuity mistake: In the motel room, the newspaper clippings and the scrapbook Monk has been working on change their arrangement on the table between shots as the owner's daughter and her dog are leaving. (00:10:30)
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.