Factual error: The song Firework by Katy Perry is heard on car radios twice in the episode, but the scenes take place in March 2010, whereas the song itself wasn't released until October 2010.
Character mistake: At the police station, he refers to the officer as Sergeant Diaz, and on his way out he says, "Thank you, Lieutenant." The officer has no rank on his uniform.
Continuity mistake: When the security cameras are shown watching Kleya walk through the hospital, she is walking with a bandaged wounded hand sticking up, and this is shown in most of the camera feeds as well. Except in one shot, she's shown walking with her hands down; then her wounded hand is sticking up once again in the next shot. (00:26:17)
Continuity mistake: When the judge lists Trevor's actions, she mentions fourteen accounts of wilful neglect and then hazardous driving, but in the first episode, she says fourteen accounts of hazardous driving and then the destruction of priceless artwork. (00:03:04)
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.
Someone to Watch Over Me - S1-E4
Continuity mistake: When Dean is yelling at Dakota in front of the house, watch the lighting through this sequence. The sun is coming in, then it's gone, and back again. The amount of angle changes combined with the movement of the sun creates an almost flickering effect.
Continuity mistake: The lawman has already killed Teonna's grandmother looking to bring Teonna to justice for killing the nuns. Several episodes later he is learning for the first time about the killings.
Continuity mistake: Toward the end of the episode, our intrepid heroes stash their large black bags as they run through the market. They run through the market for the next several minutes with only their machine guns. They later board the waiting speedboat but when they disembark, they have their bags.
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.
Deliberate mistake: When the young kid breaks out of Jeff's apartment, the ladies freak out that he's naked, when he's wearing black underwear. And then shortly after they shriek to police that he was buck naked when he wasn't.
The Mystery of the Yellow Room - S1-E8
Plot hole: The resolution of the case hinges on the fact that the titular room had a door that was then sealed off completely by order of a certain character. The key word here is "order"; the culprit did not do it by their own hand, they ordered other people (normal White House staff being asked to perform normal work) to get it done, without even overseeing the operation. They did it to conceal an incriminating object that was inside the closet that was being sealed. No worker (or team of workers, working in a historical building such as the White House, even) in their right mind would wall up a closet without first opening it and making sure it was empty. From the culprit's perspective, they directed a crew of people towards the place where the very conspicuous, incriminating, bloodied evidence was hidden and just assumed nobody would carry out due diligence. And it worked.
Plot hole: Ep 6 Ffion, with backing by a squad of police, is in a frantic search to find the killer's latest victim. She finds something and calls into headquarters, whereby the DCI says, "I'll send backup." She already has a swarm of police aiding in the search.
Continuity mistake: Detective Morales gets in the suspect's face and holds up two fingers. The view switches to the suspect's face and now Morales has three fingers in his face. (00:04:45)
Revealing mistake: Becca attempts to break the window with a microwave, which she drops and it lands on her foot. However, the microwave doesn't appear to land on her foot at all. Becca's feet are positioned on the pavement next to the door, whereas the microwave is shown landing on the grass.
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.
Audio problem: When Ilonka is speaking with her father about going to Brightcliff Hospice, in a shot where the camera is behind her, she says "Lots of foster kids. I mean, kids on their own" and the line appears to sync with her mouth perfectly. But immediately after finishing that line, she starts saying "It's a place for teenagers to transition on their own terms", and her mouth doesn't appear to sync up with the audio at all. (00:12:50)
A Deadly Net - S2-E2
Plot hole: S2E2 A Deadly Net Midway through the episode, Sylvia and others in the cast bid people goodnight, offer after-dinner drinks, but the sun is shining brightly and continues to do so for quite a period of time as events continue to unfold.
Continuity mistake: Vince Antionacci takes his watch off his left wrist and places it in the bin. In the next shot, he removes his watch a second time. (00:11:31)
Woman in the White Hat - S2-E4
Continuity mistake: Amanda comes into the Shark Bar, claims her regular table - the empty table with a large napkin left by Brook. When Brook returns to offer her a beer, there is an empty glass on the table.
See You Next Apocalypse - S2-E3
Visible crew/equipment: When Laura is finally convinced to evacuate, she shouts for everyone to head for their cars. Just as Laura reaches the area with the cars, she sees the fires, then stops short, and in the wide shot facing Laura, there are multiple T-marks (plastic type) visible on the wet ground. (00:19:45)