A study from future sport + entertainment just attached a genuine 1 billion audience tag to a sporting event. Consistent with the newly crowned #1 broadcast on this list, the other events were all aired live and were powerful enough to garner worldwide interest.
5The euphoria at the crashing down of the Berlin Wall is amazing. Definitely one of the best parties in human history. Ranking #5, I'm going to assume it was the world tuning in for Regan's famous Tear down this wall speech. But instead of the Pres, let's check out David Hasselhoff—cherished treasure of Germans and Americans alike—rocking out at the Brandenburg Gate.
David Hasselhoff at Berlin Wall 1989
4On January 20, 2009, Barack Obama became the 44th President of the United States, and the first black man to take the office. For a couple of hours, the world stopped to watch.
President Barack Obama 2009 Inauguration and Address
3Her wedding was among the most watched TV events ever, but even more tuned in for Princess Diana's funeral after the world was shocked and saddened by her death.
PRINCESS DIANA Funeral Highlights
2The world stopped to watch the Apollo 11 mission land achieve the first moon landing in 1969. This is the event of Neil Armstrong's famous speech.
One small step for man, a giant leap for mankind.
First Moon Landing 1969
1Just over 1 billion people tuned in for the airing of the Opening Ceremony of the 2008 Olympic Games in Beijing. It's the only TV ever to break the billion barrier, and it was absolutely fantastic.
OPENING CEREMONY BEIJING 2008 1

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Isn’t Michael Jacksons funeral no 1 now? It broke the billion barrier too.
A satellite broadcast for an Elvis Presley show live from Hawaii, titled “Aloha from Hawaii” on January 14, 1973 is reported to have reached over 1 billion viewers globally.[39][40] Some breakdowns of the figures suggest 40% of the Japanese television audience,[41] and 91.8% of the television audience in the Philippines,[42] with an estimated 51% of the American television audience[41] when it aired later in America on April 4, 1973.[41][43]