I used to love to read Agatha Christie novels. I also love the TV show Poirot, based on her detective character.
That show lasted a long time.  It aired on ITV from 1983 to 2013
I didn't realize it ran that long - must have missed some episodes. He's such a funny little man - what a great imagination AC had!
Agatha Christie's Poirot
Poirot (also known as Agatha Christie's Poirot) is a British mystery drama television series that aired on ITV from 8 January 1989 to 13 November 2013. David Suchet stars as the eponymous detective, Agatha Christie's fictional Hercule Poirot. Initially produced by LWT, the series was later produced by ITV Studios. The series also aired on VisionTV in Canada and on PBS and A&E in the United States.
The programme ran for 13 series and 70 episodes in total; each episode was adapted from
the "false" denouement. I did not even do that. Agatha Christie has recently developed two further tricks: one is, as of the juggler who keeps on dropping things, to leave a clue hanging out for several chapters, apparently unremarked by her little detective though seized on by us, and then to tuck it back again as unimportant. Another is to give us some, but by no means all, of the hidden thoughts of her characters. We readers must guard against these new dexterities. As for Poirot