Character mistake: When Rosemary is told that the hotel the girls are staying in used to be used for movie locations until it was restored, she says that the names on the rooms are film titles and Ben, the brother of the man who runs the hotel, agrees with her. Problem is: the girls' room is called Ebenezer Scrooge, but he is a character from the book "A Christmas Carol." And Lorna Doone, another room, is a character from the self-titled book written in 1869. It was eventually made into 2 TV movies in 1990 and 2000. It's more likely the rooms are named after very much classic characters, because the hotel was used for old movies.
Factual error: When Rosemary finds Mr Teed's dead body, the kettle is boiling. It's the type that will keep boiling until someone turns off the stove or takes it off the heat; neither of these things happen, and yet, before the scene is finished, the kettle stops making that boiling sound.
Continuity mistake: At the beginning, Rosemary has her glasses in her hand and she tries a couple of times to get her glasses case out of her bag, but she doesn't succeed - except, suddenly, her glasses are gone.
Plot hole: Dan, the policeman, finds a love letter written by Ben to Daisy, Dan's sister. The letter says "Meet me in the summer house tonight." When the girls arrived 2 to 3 days ago, Ben and his brother were arguing about the letter, which was written on blue paper. When Daisy is killed, Dan, ridiculously, accuses Ben - only on the blue letter as evidence, which we know was written days ago, and Daisy was killed in the afternoon, not at night as the letter says; plus, Dan says Daisy was struck with a heating tube, just like the ones where Ben works on the winery, but anyone could have picked it up. The evidence is stupid, but Ben is arrested, placed in handcuffs and taken away.
Orpheus in the Undergrowth - S2-E2
Other mistake: As Laura walks into a darkened bedroom, she turns the light switch on. Not only does the room light come on, but also the bedside lamps, just by turning the switch on by the door.
Continuity mistake: The windowpane that is broken by the thief is in a door that desperately needs a good paint job. It's the door that leads outside and to a small room full of plants, a veranda of sorts. But when Laura looks at the door, she's looking at the inner door, which looks like it has just been painted, and, in the morning, the broken pane is covered up by a piece of wood, but, again, it's the inner door, which is totally wrong. It's the outer door's window pane that was broken.
Revealing mistake: Near the end, where Rosemary is driving the tractor and delivering wet steam to kill the weeds, you can see the vines moving as the camera brushes them aside as it closes in on Rosemary.
Character mistake: After Laura and Rosemary attend Evensong in the church, Rosemary remarks, "I think it's amazing that they perform the same service every week for hundreds of years." But they had Evensong the day before. If they do it every week, how can they do it two days running?
Continuity mistake: Near the end, the killer, with his pistol, is 3 large steps away from the narrow road, but when Rosemary comes by on the motor scooter he's somehow close enough for her to knock the pistol out of his hand.
Plot hole: When Eddie finds the hammer that killed Cousin Jim, Rosemary and Laura are on his tail, so he rushes to the river, and so does Martin and the constable. Problem is: Eddie and the girls are on one side of the river and Martin and the constable are on the other side of a river that is impossible to cross where they are - there are bridges, but not there. So, if Martin and the constable were heading for the hammer, why did they go to the wrong side of the river? It's all very dramatic, as Eddie has to dive into the water, but it's ridiculous, plot-wise.
Swords into Ploughshares - S2-E7
Continuity mistake: At the end, Rosemary has her bag over her right shoulder when she gets into the Rover, but once in, the bag is gone.
Continuity mistake: When Bobby approaches Ray about money, as he comes down the stairs she has a bag over her right shoulder, but in the next shot the bag is gone.
Continuity mistake: When the big palm tree is being installed, Laura is giving instructions from down below, but depending on the direction of the shot - from down below or up above - Rosemary is missing half the time.
Character mistake: When Laura attempts to feel Karen's pulse on her carotid artery, after the van rolled down a hill, she says she's dead; unfortunately, Laura's fingers are too high on Karen's neck; the carotid artery is deep into the middle of the neck, not high up.
Plot hole: Laura says she knows it's Sam's car in the accident because she recognised the registration number, but the car was angled down too deeply; there's no way she could have seen it.
Continuity mistake: When the girls are loading the truck with plants for the second time, they are told that the big palm tree will be delivered tomorrow. But there are 4 smaller palm trees that magically appear - the girls didn't take them in their truck and they weren't delivered, but they're there.
Other mistake: When the girls see Dan in hospital, his IV is dripping, but in another shot we can see that the wheel on the IV that controls how fast the IV is dripping is turned off; it's right at the bottom, so it can't be dripping.
Continuity mistake: When Bobby corners Ray at the bottom of the stairs, which, I assume, lead to Ray and Blanca's private quarters, there is a swimming pool behind Bobby. At first, there's no-one near the pool, but, in the next shot, there are people dangling their feet in the water and a man asking Ray for the papers, plus more.
Continuity mistake: The first time Laura attempts to enter the Ebenezer Scrooge room she can't fit and Rosemary has to give her a couple of hard shoves from behind. But, later, she goes in and out easily.
Other mistake: When Laura is directing the planting of a very large palm tree, she says something in Spanish and points to her left; but the man installing the palm moves it to the right - the exact opposite - but suddenly it's perfect.
Answer: Regents park.