Factual error: 1-1 A couple of spelling errors. A "community center" in Ceylon, a British colony, using the American instead of the British spelling. And Columbo listed as the capital of Ceylon; it's Colombo.
Factual error: A 1973 Cadillac ambulance on the street is shown. The show is set in the 1960's.
Row Row Row Your Boat on a Rocky Sea - S9-E1
Revealing mistake: Dr. Charles reads the patient's chart. Near the bottom, it says, "Is this enough filler? My hand hurts." (00:19:30)
Death Will Have His Day - S2-E12
Factual error: In the hospital room scenes Rhonda still has her earrings in her ears and diamond wedding ring on her hand. A hospital always removes a patient's personal property and jewelry when admitted to the hospital. (00:12:00 - 00:24:00)
Continuity mistake: The martini glass Elliot was drinking changes to faux Fen's hand with no explanation of how she got it. (00:09:00 - 00:09:25)
Continuity mistake: Inspector Bucket looks at the wallet Compeyson has placed on bar. The letter M has a few studs missing at top left. Later, when Bucket shows the wallet to Fagin, the M is complete. (00:18:25 - 00:21:50)
Character mistake: In an early episode, Villa mentions Rosewood's "banana colored" '69 GTO to his then girlfriend. Rosewood's GTO is a "banana colored" '68 GTO.
Factual error: Detective Chief Inspector Kapoor is suddenly shown in uniform with inspector's rank insignia. Detectives never wear uniform (except rarely on formal occasions) and he has apparently dropped a rank.
Blood and Quiescence/Crau a Chwsg - S1-E10
Factual error: Annora is seen playing a piano. This is set during the reign of Edward II of England (1284-1327) and the earliest known reference of the harpsichord (the forerunner of the piano) was in Padua, Italy in 1397.
Episode #1.1 - S1-E1
Continuity mistake: When he is asked "The culprit is a woman, isn't it?", the doctor is suddenly holding the pen between both hands instead of just with the right hand. (00:29:55)
Factual error: The detective constable is addressed as "Sir" by uniformed constables. They actually hold the same rank. Detectives do not outrank uniformed officers in Britain.
Die Glocke - S4-E6
Other mistake: When Jones is trying to convince Herr Waesch that she's the owner of the estate where his gala is being held, subtitles of his reply read "I personally procured this home. It's owners were French." The contraction "it's" should be the possessive "its."
Continuity mistake: Tutankhamun and Suhad ride to the Mitanni city on a horse with no equipment at all, not even a saddle. Yet mysteriously when they need to stop for the night a large tent appears out of nowhere.
Factual error: As Ren enters Renautas and meets Emily, the word "Welcome" keeps scrolling in various languages on the screens in the background. Although hardly seen, the Hebrew is wrong, as it is reversed (text from left-to-right, as opposed to right-to-left).
Factual error: Many elements of Marlott's trial and execution are incorrect. The judge sits with two assessors (a European practice, not a British one). He is addressed as 'Your Honour' instead of the correct 'My Lord'. He instructs the jury to find Marlott guilty and then goes straight to sentencing, which would never happen; a judge can instruct a jury to acquit, but not convict. He puts the black cap on himself, instead of an attendant doing it. The form of words for the death sentence is incorrect. The chaplain (who appears to be Catholic, not Anglican) gives a speech at the scaffold.
Running with the Devil - S1-E2
Factual error: The show is set in 1982. However the dedicated song on the radio is Mötley Crüe's "Shout at the Devil", which wasn't released until September 1983.
Episode #1.2 - S1-E2
Continuity mistake: When Jamie and Dave are trying to drive around the old couple, you see Jamie's window is all the way down, but a few feet later when they run out of gas, we see Jamie roll his window down to talk to the couple.
Revolution 1 - S2-E4
Factual error: Hodiak is having breakfast at a dinner. There is a sign for breakfast with a price of $4.95. In 1967 the price for breakfast would have been around $1.25 or less. Minimum wage was $1.60 an hour and the price of a big Mac, for example, was $0.50 and fries $0.10. So a $4.95 price for breakfast is just ridiculous.
Continuity mistake: When the "Mole Women" are being interviewed on the "Today Show", watch the white circular table in front of them and the couch they are sitting on. The host has a small smattering of papers and a pair of glasses sitting besides him at the beginning of the scene. Throughout the scene, he will sometimes be holding the glasses and using them to gesture, sometimes not. And the papers move about from the couch, to the table, to another position on the table, etc. True, there are several shots where they are not visible, but it would make no logical sense for him to repeatedly pick up and move them between every shot where they're visible for no reason, and he is sitting in the exact same position in every shot, with his body language showing no movement towards them. They obviously shot the scene a few different times and he placed them down in different positions each time, and the scene was constructed with these different shots.
Episode #5.7 - S5-E7
Other mistake: Two actors are standing on an ancient muddy track which shows the tyre prints of a modern vehicle, made probably by the 4WD camera car. (00:09:00 - 00:10:00)