Poirot

4.45PM, ITV3

Hercule Poirot might be a brilliant detective, but he is also a world-class moaner, and can treat people with a breathtaking level of arrogance. So it’s nice that, in this festive mystery from 1995 – in which a whole family are suspected of killing their patriarch – the Belgian (David Suchet, left) is actually on relatively cheery form.