The Duke and Duchess of Cambridge have launched their own YouTube channel with a montage video showing the couple at work and play.

William and Kate will feature in exclusive clips posted on the popular video sharing site in the coming months.

The move is likely to be interpreted by commentators as the couple further establishing their public voice on a platform that has a huge online audience.

In the first video to posted on the site, the couple are shown sat on a sofa and William jokes with Kate as it begins.

Pointing to the camera and people behind it, he quips: “Be careful what you say now because these guys are filming everything.”

And a laughing Kate replies “I know”.

To a soundtrack with a pounding beat, the 25-seconds long video rapidly shows brief clips of a range of royal events: from the couple’s trip to Bhutan, with Kate trying her hand at archery; to William flying a helicopter and the duchess meeting young children.