Episode #4.7 - S4-E7
Continuity mistake: When the host of the conch game says "One condition; it must include..." he has his hand open, left one off the conch, and in the next shot both are on the item. (00:01:10)
Episode #4.6 - S4-E6
Continuity mistake: At the end of the episode, in a stellar endorsement of Catherine's hospitality JP says that it's better than the prison cell. During the sequence Tobi Bakare's hands are on/off the bottle repeatedly. (00:50:25)
Episode #4.6 - S4-E6
Continuity mistake: Maz Shipley confesses to the bribe and says it was "For Mum." Her teammate looks away from her, but in the next shot she is still looking at her and turns her head only after. (00:33:55)
Episode #4.6 - S4-E6
Continuity mistake: In the shot when Dwayne boasts about knowing most of the bookies on the island, DI Humphrey Goodman in the foreground has his hands on his waist, in contrast with the shot before and after - arms relaxed down his sides. (00:32:25)
Episode #4.6 - S4-E6
Continuity mistake: Rewatching the footage of the previous games, Humphrey says that there's another match where the opponents dropped the ball. He is in foreground with his hand on his cheek, but in the close-up of Florence that asks to rewind, Kris Marshall's face is clear. (00:31:35)
Episode #4.6 - S4-E6
Continuity mistake: When Florence says Humphrey's usual line about needing a break after a long day, Joséphine Jobert puts her hand on her forearm, but it's in the air in the reverse shot. (00:27:50)
Episode #4.6 - S4-E6
Continuity mistake: In the interview with the Saint Marie team, about the complaint the victim was about to make before the disciplinary committee, Alison Turner has the hands on and off the water bottle as the different camera angles alternate. (00:25:20)
Episode #1.8 - S1-E8
Continuity mistake: Camille picks up the laptop from the victim's desk, and Jon Taylor tries to stop her. The laptop is positioned differently in her arms between shots. (00:14:40)
Episode #4.6 - S4-E6
Continuity mistake: Goodman asks the suspects if anyone saw Shelley earlier that morning. Alison Turner has her fingertips against her temple, but it's a closed fist in the next shot. (00:14:40)
Episode #4.6 - S4-E6
Continuity mistake: Inspecting the hotel room, Florence pulls the money out of the wallet holding it at a certain distance in the first shot, much closer/partially still inserted in the reverse. (00:11:30)
Episode #4.6 - S4-E6
Continuity mistake: Florence tells Humphrey poolside that the victim was "stabbed in heart. Death would have been instant." Goodman in this wide shot listens with his hand a bit lowered, placing it just below his chin, but it's in front of his belly in the next shot. (00:09:25)
Episode #4.6 - S4-E6
Continuity mistake: Humphrey and Florence are at the resort, and she just laid down the preliminary forensics reports. Dwayne calls their attention; Florence leans against the railing with right hand and puts the left one on her hip. Except, the next shot she is leaning on the railing with both. (00:10:00)
Episode #4.6 - S4-E6
Continuity mistake: The police is at the crime scene for the first time; the victim has her phone lying horizontally on her arm, but in close-up the hand dropped lower and the phone now is at 45°. (00:06:40)
Episode #4.6 - S4-E6
Continuity mistake: After the desk accident, the phone ring at the Honore police station. Florence is looking at her boss puzzled holding the cup in one hand, except in the intermediate overhead shot, when she is using two, and again she goes from one to two all of a sudden when she asks Dwayne about the call. (00:06:25)
Episode #4.6 - S4-E6
Continuity mistake: First shot right after the opening theme; Dwayne is holding the Saint Marie Times and his hand is on the box above what we see in close-up is an article about the recession. In that close-up though, his hand is much, much lower on the page. (00:05:00)
Episode #4.6 - S4-E6
Continuity mistake: The victim is discovered. She is holding her phone in close-up in a direction that seconds the fingers, but in the aerial shot the phone comes in from the opposite direction, left to right. (00:04:25)
Episode #4.6 - S4-E6
Continuity mistake: The coach of the winning duo looks in the distance at the other volley players leaving. His glass is noticeably fuller in the slightly out of focus reverse shot. (00:02:30)
Episode #4.6 - S4-E6
Continuity mistake: In the establishing shot of the serve of the matchpoint, the corner of the field is free from shadows and the people standing in the opposite corner cast long shadows. In the following shots, both these conditions change. (00:00:20)
Episode #4.5 - S4-E5
Continuity mistake: When Daisy Buttercup tells the investigators that Stevie ended the relationship, she plays with his necklace in the front views using both hands - but just one hand as in the rest of the scene when she is from 3/4 behind. (00:38:45)
Episode #4.5 - S4-E5
Continuity mistake: Humphrey is holding the copy of the artwork of the reissued album. Overwhelmed by his staff's objections, he goes to his desk and crashes in his chair. His hand is on the shorter, longer, shorter side of the paper sheet, a change for each cut. (00:35:40)
Answer: There's probably no particular reason. Sets and props on long-running TV shows often change as needed and for various reasons throughout a series run.
raywest ★