TV: Agatha Christie's Poirot: The final four films, start Wednesday 23rd October at 8pm on ITV

Four upcoming films will mark the end of Agatha Christie's Poirot, and see David Suchet reprise his role as the world famous Belgian detective for the very last time. After the final film has aired, every major literary work by Christie featuring Hercule Poirot will have been adapted. Don't miss them on ITV, starting with The Big Four on Wednesday 23rd October at 8pm.