Factual error: The bad guy tells the townsfolk to 'Get out of Dodge.' Not a saying used in 1879, despite Dodge City being a real place. In fact by this time Dodge City was no more violent than many other places, so it wouldn't have been used as a direct comparison either. There's no record of this specific phrase being used until Gunsmoke, in 1955.
Factual error: It is stated that Christopher and Corinne settle in Pittsburgh. However, when Christopher is killed in a car accident, the police officers who come to inform Corinne are in a Virginia State Police car. Most of the rest of the series is set in Virginia, probably leading to the mistake, but this scene is not.
The Shadow of Baron Battenberg - S2-E2
Factual error: The Triumph 2000 driven by Victor Goodbody is a 1969-75 Mark 2 model, too late for the era.
Factual error: Detective Superintendent Hamilton has red fabric within the crowns on her rank insignia. This would be correct for most British police forces, but the Metropolitan Police uses blue fabric instead.
Factual error: The Commissioner of the Metropolitan Police has red fabric within the crowns on his rank insignia. This would be correct for most British police forces, but the Metropolitan Police uses blue fabric instead.
T'áá Álts'íísígo (Just a Small Piece) - S3-E7
Factual error: The chief Border Patrol agent says to "convince them to drink the Kool-aid." Jim Jones had his followers drink poisoned Kool-aid in 1978, several years after the events in this episode.
Dial Margaret for Murder - S2-E4
Factual error: In Series 2 Episode 4 (Dial Margaret for Murder), Allison listens to Dick Frank's heart. She has her stethoscope in her ears backwards. As a physician, she would never do that.
Green Juice - S1-E3
Factual error: The CBP officers are using handheld metal detectors to conduct a pat down search. CBP have never used them as all pat down searches are done by the officers using their hands. (00:01:24)
Factual error: The German series is set in 1987 in Berlin before the wall came down. It shows a suitcase going through airport security that wasn't set up until after 2001.
Factual error: In a scene set in March 1968, after Tammy Wynette finishes recording "D-I-V-O-R-C-E," George Richey introduces himself to George Jones as the musical director of "Hee Haw." John Aylesworth and Frank Peppiatt created the "Hee Haw" series in 1969.
Factual error: Jake and Miyamoto go to an establishment where there are girls dancing on stage. The girls are first dancing to "Motivation" by Kelly Rowland, released in 2011, and "Aly Walk With Me" by The Raveonettes, released in 2007. But, this scene takes place in 1999.
Factual error: When Reacher talks on the phone with Secret Service agent Molly Beth Gordon, she is using a Huawei phone, which has been banned from all agencies since 2019.
Factual error: Gordon Liddy is in federal prison and in solitary confinement, and he is still wearing his gold wedding band. (00:29:36)
Factual error: Royal uses a pay phone in the library. The only working pay phone in the state at this time is at a rest stop.
Factual error: The British Army soldiers are not wearing British Army uniforms or carrying British Army weapons and some of them have beards, which are not permitted to British Army soldiers.