I don't really know, but I'm from the Netherlands and on Dutch television, they always refer to Big Bang Theory as '' the most watched sitcom of America''.
The USA soccer is the most watched sport in the world
the sport that is most watch in the usa is baseball
Sitcom - 1983 TV was released on: USA: 2 October 1983
Textbook Relationship Sitcom - 2001 was released on: USA: 2001
Dirty Laundry the Sitcom - 2011 was released on: USA: 16 September 2011
Basketball. Which is commonly watched by people in the USA, Europe, and Canada.
Newsreaders - 2013 Sitcom Family 2-3 was released on: USA: 2014
Traffic School - A New Sitcom - 2012 was released on: USA: 21 May 2012
Most Outrageous Moments - 2008 was released on: USA: 4 April 2008
The Fifa World Cup is the most watched sporting event in the whole wide world, in terms of the numbers who watched the entire event. However, the single most watched sporting event in history has been the India - Pakistan semi - final of the cricket world cup, 2011, which was watched by over 1 billion people. In comparision 'only' about 750 million watched the finals of the FIFA world cup.
Watched - 1974 was released on: USA: September 1974
Love Sidney - 1981 Sitcom 2-7 was released on: USA: 13 November 1982