The Sunday Times just now tweeted:
Kate astonished everyone in royal circles with how she handled their wedding in April 2011, watched by an estimated global audience of two billion.
New York Times back then
Viewing estimates for the ceremony, at 11 a.m. British time on the dot, hovered in the three billion range, give or take 500 million.
but it's mum on the sources of this number.
Is there any merit to this bombastic claim?