History Series / Marple

* MaybeEverAfter: In ''Literature/AMurderIsAnnounced'', [[spoiler:it's left ambiguous whether Patrick and Emma get together. In the original novel, [[DidNotGetTheGirl she rejects him.]]]]

* YouMeddlingKids: As per norm, more than a few culprits curse Marple's interfering as they are taken away into custody. In ''The Pale Horse'' in particular, the culprit is outright dragged away screaming blue murder at her after she merges it with a very sharp TheReasonYouSuckSpeech. Furthermore, the murderer from ''Towards Zero'' has a VillainousBreakdown as well (similar to the one in the book), which ends with him cursing Miss Marple and everyone else involved.

* YouMeddlingKids: As per norm, more than a few culprits curse Marple's interfering as they are taken away into custody. In ''The Pale Horse'' in particular, the culprit is outright dragged away screaming blue murder at her after she merges it with a very sharp TheReasonYouSuckSpeech.

** ''They Do It with Mirrors'' changes the motive of the killer from "killing to hide his involvement in fraud and embezzelment, which furthered his own cause, from his wife" to "commiting fraud and embezzelment to save his wife's cause and subsequently commiting murder to protect said cause (and his wife)". This made the murderer genuinly kind-hearted, instead of greedy and gold-digging.

* AdaptationalJerkass: In ''Literature/AMurderIsAnnounced'', Edmund Swettenham is an altogether more bitter and unpleasant boy than in the book, and resentful of his mother's relationship. It doesn't help that his [[spoiler:clever plot with Inspector Craddock]] and his tender relationship with [[spoiler:Phillipa Haymes]] are taken out.

* AdaptationalNiceGuy: The killer in ''4:50 from Paddington'' is much more sympathetic than in the original novel. [[spoiler:Here, his motive is his love for Emma and not his desire for the Crackenthorpe fortune.]]

* AdaptationExpansion: The series did this to several of the episodes, most notably ''The Blue Geranium'' and ''Greenshaw's Folly'', both of which were originally short stories. In both cases, both the cast and the sequence of events were significantly expanded upon and, in the case of ''Greenshaw's Folly'', several additional murders took place throughout the episode. Furthermore, in ''The Secret of Chimneys'', elements of another short story, ''The Herb of Death'', was introduced, making this episode a quasi expansion on that short story.

* AdaptationExpansion: The series did this to several of the episodes, most notably ''The Blue Geranium'' and ''Greenshaw's Folly'', both of which were originally short stories.

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# "[[Literature/GreenshawsFolly Greenshaw's Folly]]"

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# "The Pale Horse"

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# "Greenshaw's Folly"

* RoleSwapAU: ''The Body in the Library'' switches the roles of [[spoiler:Adelaide Jefferson and Mark Gaskell]] as the murderer and [[spoiler:Josie Turner's lover and accomplice]].

# "4.50 From Paddington"

# "Sleeping Murder"

# "By the Pricking of My Thumbs"

# "Nemesis"

# "A Pocket Full of Rye"

# "They Do It With Mirrors"
# "Why Didn't They Ask Evans?"

# "The Secret of Chimneys"

# "Endless Night"

* ItIsPronouncedTroPAY: Lettice in the ITV version of ''Literature/TheMurderAtTheVicarage'' would like to make it clear that her name is ''not'' pronounced the same way as the vegetable.

** Hinch and Murgatroyd from ''A Murder Is Announced'' go from being middle-aged to in their twenties.

* AdaptationRelationshipOverhaul: While ''4.50 from Paddington'' has every male in Rutherford Hall express some interest in Lucy Eyelesbarrow, as it was in the book, the episode mirrors the previous BBC adaption in that there are only two men with a serious chance at her - Bryan Eastley and Inspector Craddock. The ending has her chose [[spoiler:Craddock.]]

** In ''Literature/AtBertramsHotel'', Canon Pennyworth goes from a kindly, forgetful vicar to a [[spoiler: Nazi war criminal in disguise]].

* In ''Literature/AtBertramsHotel'', Canon Pennyworth goes from a kindly, forgetful vicar to a [[spoiler: Nazi war criminal in disguise]].

** Of the twenty-one episodes, ''Miss Marple herself'' doesn't appear in nine of the books they're based on; given that "The Blue Geranium" and "Greenshaw's Folly" were both adapted successfully, it raises the question as to why more of the Marple short stories weren't adapted instead.

# "What Mrs. [=McGillicuddy=] Saw"

# "Ordeal By Innocence"

# "Murder Is Easy"

** [[spoiler:Gwenda Vaughan]] is murdered instead of [[spoiler:Philip]] in ''Ordeal By Innocence''.

** At the end of ''Why Didn't They Ask Evans?'', [[spoiler:Roger and Moira attempt one final murder and are both killed in the ensuing struggle. In the novel, Moira was arrested while Roger [[KarmaHoudini got away scot-free]].]]

* InNameOnly:

* RelatedInTheAdaptation: Eileen "Bundle" Brent and Virginia Revel the two main female characters in ''The Secret of the Chimneys'' are sisters in the TV adaptation. In the books, Virginia was an important guest to a party hosted in Eileen's home, but the two weren't related.

** ''Literature/TheBodyInTheLibrary'': The ''Agatha Christie's Marple'' version of Mark Gaskell is a lot more sympathetic than the book counterpart. For one, the death of his wife seems to affect him more greatly in the adaptation than it did in the books. This particular adaptation also turns him into a former RAF soldier who fought in WWII, and there are several hints that he's suffering from [[ShellShockedVeteran shell-shock]] and SurvivorGuilt (because two of his best friends were killed during the war), which turns him into a gambling addict. [[spoiler:The fact that he's innocent of the crime he committed in the original books just ramps up his misery even further]].