
The London 2012 Summer Olympics drew huge ratings for broadcasters around the world - from the BBC in the U.K. to NBC in the U.S. While many viewers tuned in live, delayed viewing on TV and digital platforms also drew a crowd. Plus, the Summer Games became the first-ever social media Olympics, with people in many countries turning to Twitter and Facebook to celebrate and comment on winners, losers and old favorites and new-found stars among Olympic athletes - from Usain Bolt to Michael Phelps and Ryan Lochte. TV network groups that didn't air the Summer Games, meanwhile, reported a hit to ratings and advertising revenue.
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