Sundays at 9pm
Watch the latest series four extras
Catch up on the events of previous series using our photo galleries
Are you excited about the new series? Join our Facebook and Twitter pages and tell us what you're most looking forward to.
Watch the trailer for Downton Abbey's Christmas Special Episode - Christmas Day at 8.30pm on ITV.
Watch the trailer for the series finale of Downton Abbey series four.
© Copyright ITV plc 2013