The Billion Dollar Question
It's often said there are only three events that are guaranteed the biggest global audiences: Olympic Games, World Cups - and major British Royal landmarks.
We'll find out in the next few days just how much a Royal Wedding unites Britain and the wider world, and this isn't a post that's going to compare relative audiences because we know all three are huge.
But I want to share a few thoughts about the art of viewing figures and then about what links these events in a digital age.

I'm Roger Mosey, the ÃÛÑ¿´«Ã½'s director of London 2012. That means I'm overseeing all the ÃÛÑ¿´«Ã½'s 2012 preparations including not just sport but the Cultural Olympiad, our Olympic news and information services and everything that will bring the story of the London Games to audiences at home and abroad. I want to share here what we're planning - and debate some of the big issues. You can also follow me on .