Later in the 80s American TV took various Christie books and dropped them into contemporary settings. The result: a series of wooden movies. This series proves Britain got there first. Set in the 1920s/30s the main characters are stiff , they seem to be reading their lines. Remember the old joke about President 'Gerald Ford' (qv)? Well, neither 'Francesca Annis' (qv) nor (especially) 'James Warwick' (qv) seem able to walk and act at the same time. A deplorable series, with more ham than a pig farm. An insult to Agatha Christie.