Audio problem: At Jessica's stockbroker's office, there's a thick rug on the floor, but some footsteps sound as if they were on hardwood.
Visible crew/equipment: Set light reflected when Danny crashes his pickup.
Revealing mistake: When Danny recounts crashing the pickup and breaking the tail light, you can hear the light shatter when he hits the tree - but it doesn't actually break. In the next shot, however, the tail light is suddenly smashed.
How To Make a Killing Without Really Trying - S6-E14
Revealing mistake: When Jessica enters Gordon Tully's office and looks around, there's a photo of him with Buddy Black. The picture is an awful, poorly done composite: the lighting on their heads doesn't match the rest of the image, the head sizes are out of proportion with the bodies, and the overall light direction is inconsistent.
How To Make a Killing Without Really Trying - S6-E14
Continuity mistake: When Jessica meets the golfer, the glove on his left hand is missing in the front shots, but reappears in the reverse angles - where he is actually seen taking it off with his other hand.
Murder -- According to Maggie - S6-E17
Visible crew/equipment: When Jessica introduces the story and walks toward the coffee table, a chalk T-mark on the floor becomes visible on the left as she sits down.
Visible crew/equipment: When Roland's chauffeur opens the door, set lights are reflected in the window. (00:25:26)
Suggested correction: A light is reflected in the window. The scene is illuminated, so there are obviously lights at the location. What about the reflection indicates that they are stage lights?
Visible crew/equipment: As Dennis enters the house through the window, a set light is visibly reflected in the glass.
Suggested correction: A light is reflected in the window. What indication is there that it is a stage light and not just a lamp that would be at the setting?
Who Killed J.B. Fletcher? - S7-E14
Factual error: Bremerton, Washington is not a hick town as depicted in this episode (it is the home of Puget Sound Naval Shipyard, a US Navy installation that employs 14,000 people) and the people there do not have southern accents.
Factual error: At the end of the episode after Wayne is shot, there is a brief shot of the outside of the hospital where he has been taken. The sign outside the hospital says Dalesboro, Ohio. Why would someone shot in coastal Maine end up in a hospital in Ohio?
Factual error: "Witches" were burned at the stake in Europe, but not in America. In America, they were hanged.
Tinker, Tailor, Liar, Thief - S8-E15
Revealing mistake: In the second close up shot of Nigel Atkins lying dead, after Jessica drops her Harrod's bag in the chair, it is obvious he is still alive as you can see his pulse on the side of his neck.
Programmed for Murder - S8-E18
Revealing mistake: In the outside shot of the hospital, just before Mort discusses his cough with Doc Hazlet, you can see a sign saying the hospital is located in Ohio, not in Maine. This isn't the only episode where this exact mistake is made.
Factual error: Celestial navigation can determine one's position on the earth's surface to within about one mile, not precise enough to give the location of a buried treasure. It also requires more than a sextant. It requires tables published in a nautical almanac (which is updated each year), charts on which to plot lines of position, and an accurate chronometer that is set to the precise time at the Prime Meridian (Greenwich Mean Time).
Factual error: When Buck's body is found, his blood is red when it should be brown due to oxidation after how much time has passed.
Continuity mistake: When the episode begins, Jessica is having a meeting with Sally Wilson, who hangs a bag over her shoulder. A shot later, her bag is down and she is hanging it again.
Audio problem: When Buck walks to the bar downstairs and meets Mrs. Oates, the sound of their footsteps is that of tiled floor, but they're walking on a rug.
Visible crew/equipment: After Seth drives Jessica downtown, lights, crew, and filming equipment are reflected on the car window.
Continuity mistake: When Jessica is having dinner, his glass swaps between full or almost empty depending on the shot.
Audio problem: Several times during the episode, when someone is walking on a rug, the sound of footsteps is that of a hard tiled floor.
