How many people went to watch the Olympics opening 2012?

Answer 1

It was watched by an estimated worldwide television audience of 900 million and over 70,000 seats were fitted with nine full-colour LED squares. With these devices the audience was able to participate in broadcasting images of a 1960s Go-go dancer, a train in the London Underground, and a representation of the birth of the internet. The audience was also able to wave with the paddles to create a twinkling effect. Everyone there watched so it's hard to seperate a count expect those standing and seated in the audience were at least 75,000