Do you have proof it originally aired as the first episode of the third series?

I can see that ITV currently starts the third season with The Mysterious Affair at Styles (this match the Acorn DVD):

https://www.itvstudios.com/catalogue/251
https://www.itv.com/hub/agatha-christies-poirot/L0830

But as another mod pointed out in an older report, "How Does Your Garden Grow" previously was episode 3x01: https://www.itv.com/itvplayer/agatha-christie-s-poirot/series-3/episode-1-how-does-your-garden-grow At least some newspapers have the same season break, but not enough to be certain.

According to Wikipedia and IMDB The Mysterious Affair at Styles (2x10) should be S03E01. Also It would appear that S02E01 is in two parts - At least it is offered that way on Youtube, both with the full introduction. So it was not split by the uploader, but this is listed as only 1 part on both Wikipedia and IMDB but it is noted as being an extended episode. Perhaps in some regions it was released as two parts??

I add to my previous post that Amazon report the following as Season2:

1. Peril at End House (Part 1)
2. Peril at End House (Part 2)
3. The Veiled Lady
4. The Lost Mine
5. The Cornish Mystery
6. The Disappearance of Mr. Davenheim
7. Double Sin
8. The Adventure of the Cheap Flat
9. The Kidnapped Prime Minister
10. The Adventure of the Western Star

We list the series based on the first initial broadcast, not the way they are listed now.

So, do you have a proof describing the first broadcast of the series ?

No. That makes scrapping difficult, but I guess you have to make a line in the sand somewhere. Thanks.

We (the rest of the world accessing TMDB) would appreciate anyone having the capability to correct entries for seasons 2 & 3 to please do so. Is someone making a case that 'The Mysterious Affair at Styles' didn't air in season 3 as listed elsewhere? (Amazon, Wikipedia, IMDB, agathachristie.fandom.com, etc., etc., ...) An air date does not define a season, the producers do. "The Mysterious Affair at Styles is the first episode of the third series of Agatha Christie's Poirot. It was broadcast on 16 September 1990." Why is this even a discussion?

They should be: Agatha Christie's Poirot S02E01 (1990) - Peril at End House (pt.1) Agatha Christie's Poirot S02E02 (1990) - Peril at End House (pt.2) Agatha Christie's Poirot S02E03 (1990) - The Veiled Lady Agatha Christie's Poirot S02E04 (1990) - The Lost Mine Agatha Christie's Poirot S02E05 (1990) - The Cornish Mystery Agatha Christie's Poirot S02E06 (1990) - The Disappearance of Mr. Davenheim Agatha Christie's Poirot S02E07 (1990) - Double Sin Agatha Christie's Poirot S02E08 (1990) - The Adventure of the Cheap Flat Agatha Christie's Poirot S02E09 (1990) - The Kidnapped Prime Minister Agatha Christie's Poirot S02E10 (1990) - The Adventure of the Western Star

Agatha Christie's Poirot S03E01 (1990) - The Mysterious Affair at Styles Agatha Christie's Poirot S03E02 (1991) - How Does Your Garden Grow? Agatha Christie's Poirot S03E03 (1991) - The Million Dollar Bond Robbery Agatha Christie's Poirot S03E04 (1991) - The Plymouth Express Agatha Christie's Poirot S03E05 (1991) - Wasps' Nest Agatha Christie's Poirot S03E06 (1991) - The Tragedy at Marsdon Manor Agatha Christie's Poirot S03E07 (1991) - The Double Clue Agatha Christie's Poirot S03E08 (1991) - The Mystery of the Spanish Chest Agatha Christie's Poirot S03E09 (1991) - The Theft of the Royal Ruby Agatha Christie's Poirot S03E10 (1991) - The Affair at the Victory Ball Agatha Christie's Poirot S03E11 (1991) - The Mystery of Hunter's Lodge

" Poirot S03E01 (1990) - The Mysterious Affair at Styles " I have the DVD for season 3 and I can verify that episode 1 is indeed "The Mysterious Affair at Styles " Image of DVD View Here

I would be nice to get this updated..

As indicated above, our listing are based on the original TV broadcast, not on the content of the current DVD.

If you want them listed in the order of your current disc, you need to use this episode group.

Oh, so it was originally the last episode of Season 2... Yikes.. what a mess!