Factual error: When Rick has given Andrea his revolver to end her life, he leaves the room with the others to leave Andrea and Michonne alone. The next thing you see is Rick, Tyrese and Daryl waiting outside the room. You hear the gun go off and then you hear a tinkle as a shell casing hits the floor (noticeably "lighter" than the sound the revolver would make when dropped). Revolvers do not eject a shell casing.
Friends in High Places - S10-E8
Factual error: Police Officer Troy was taken into a room by Sgt Regan to be interviewed. He has one Sgt stripe on one sleeve. He's a police officer, not a Sgt.
Factual error: On the map behind the colonel during the first scene, Iceland is labelled as being under Nazi control. This is incorrect, as the British were in control of the country during the whole of the war. (00:05:10)
Episode #4.5 - S4-E5
Factual error: When Lady Edith visits a Harley Street doctor his nameplate is shown outside his surgery. His name is prefixed with "Dr." However, one of his post-nominal qualifications is "FRCS." As a Fellow of the Royal College of Surgeons, his name should be prefixed with "Mr.", as with all qualified surgeons in the British Isles.
His Last Vow - S3-E4
Factual error: Sherlock takes pains to explain in detail that he will deliberately corrupt the magnetic code stripe on an access control card he intends to use to enter the elevator to the villain's penthouse, by carrying it next to an operational cell phone. (This is possible due to the low frequency magnetic field from a phone's vibration motor.) But when he actually goes to access the elevator, he simply touches his access card to the reader instead of swiping or inserting the card through a slot, which is how a magnetic stripe reader would operate. The elevator uses an RFID proximity reader, not a magnetic stripe reader - a phone wouldn't corrupt an embedded RFID tag.
No ke ali'i wahine a me ka 'aina - S7-E2
Factual error: Five-0 brings up a map of all nuclear power plants in Western Europe that is completely inaccurate - most of the trefoil markers in Great Britain are placed nowhere near nuclear installations, and has 3 in Ireland (which doesn't have any nuclear reactors).
Factual error: Scenes were obviously not filmed in London, more like New England. The vehicle registrations are the right colour, but wrong format.
Factual error: One of the naked female dancers at the party has breast implants. Although some forms of plastic surgery were known to the Romans, breast augmentation was not one of them. If you want to check for yourself she appears just after the masked dwarf moves through the shot.
Factual error: Will's hospital chart states he is taking Warfarin and Coumadin. These are both the same drug to prevent blood clots. He would not be on both. (00:31:50)
Factual error: At Walter's apartment, Annie notices a group of spy novels on his shelf. The "spy novels" are actually six books from the Goosebumps series by R.L. Stein, The Day My Butt Went Psycho by Andy Griffiths, four books from Lemony Snicket's A Series of Unfortunate Events, and the British covered edition of Harry Potter and the Prisoner of Azkaban by J. K. Rowling. (00:18:30)
Factual error: When J.J. first discovers his powers and understands math, the parabola "seen" on the board is wrong for the given equation and it's different than what J.J. actually ends up drawing, which seems more like the right answer.
Factual error: PJ is getting his hair cut by an attractive female barber. Attached to the outside of the window is a neon sign reading "BARBER SHOP," but the sign faces the inside of the building so it would be backwards to people outside.
Factual error: The show is supposed to be taking place in NYC, however its clear by the shooting locations that its shot in Toronto. This can also be seen very by the various signs throughout the city that are not found in the US and are very Canadian in nature, such as the Do Not Enter and One Way.
Funny Money - S1-E10
Factual error: The characters travel to Cyprus where they are seen driving on the right hand side of the road, when in Cyprus they drive on the left.
The Girlfriend Experience - S3-E8
Factual error: The group set up a sting for prostitution/solicitation, even though it isn't illegal in Canada. The unnamed city they patrol is Canadian, established in the "sister cities" they name, plus often referring to Rochester and New York as "across the border. As for prostitution, the only two times its illegal for adults in Canada is public solicitation (street walking) which doesn't apply for websites, or in running bawdy (cat) houses, neither of which apply here.
Perishable - S4-E9
Factual error: Lydia tells Stiles that as a child she was so obsessed with the book "The Little Mermaid" and insisted on being called Ariel for months. The thing is that the character wasn't named in the book, she was only given the name Ariel in the Disney film.
Episode #1.3 - S1-E3
Factual error: The detectives determine that the killer must be using a boat which he used to dump the first body next to a canal in Birmingham. However, the barge he is using is far too large to navigate the Grand Union Canal from London to Birmingham, let alone the canals within Birmingham itself.
Factual error: Squirrels are seen woken from hibernation along with other animals, but squirrels don't hibernate.
Factual error: Early in the episode Stonebridge removes a bullet with the casing still attached from Scott's leg. (00:11:00)
Black Widow VS Widowmaker (Marvel VS Overwatch) - S6-E3
Factual error: When Black Widow and Widowmaker fire the sniper shot at each other, there is a close up of the bullets grazing each other in mid air. However in this shot the bullets are animated as having the casings still attached while flying through the air. (00:15:30)