Ain't YouTube grand?
Here's a clip of that Graham Norton show with Harry Connick, Katherine Jenkins & Rob Brydon. The whole show is there on YouTube - Harry sings in part five if you find the related clips - but at about six minutes in, Katherine duets with a little black dog via Skype. This is what we pay the licence fee for.
I've just re-watched it and re-loved it. A televisual gem.