There are six series (seasons) of Downton Abbey. The show originally aired from 2010 to 2015 and comprises a total of 52 episodes across these six seasons. The sixth series, aired in autumn 2015, was confirmed as the final series with the last episode broadcast on December 25, 2015. Additionally, there have been three feature films continuing the story after the TV series ended. There are also reports about a potential seventh season in development, but as of now, six series have officially been produced and aired.