This is the beginning of the Wikipedia entry about The One Ronnie:
The One Ronnie was a one-off comedy television sketch show that aired on BBC One on Christmas Day 2010 to celebrate the 80th birthday of Ronnie Corbett. It featured sketches between Corbett and Lionel Blair, Rob Brydon, James Corden, Jon Culshaw, Harry Enfield, Jocelyn Jee Esien, Miranda Hart, Robert Lindsay, Matt Lucas, Catherine Tate, David Walliams, Richard Wilson and Alan Dedicoat. Charlotte Church also appeared as herself.
At the turn of 2011 Jeffrey Hill included the Blackberry Sketch below on his blog.
Michelle Henry has also included the sketch on her list of June 2011 links, adding the transcript and an activity.
I hope you enjoy everything.