Viewers have been enthralled in the will they won't they storyline between Lady Mary and Matthew and tonight saw the pair finally walk down the aisle in the first episode of series three.

And what a way to kick off the highly-anticipated new series with the joyful and uplifting union of the couple in the wake of news that the future of Downton and the Crawley family is under serious threat.

The series begins by informing viewers it is now the 1920s and the family are preparing for Mary and Matthew's big day.