most watched events sources

https://www.sport-olympic.gr/sp/index.php/olympic-games/modern-olympic-games/summer-olympic-games/1996-atlanta-summer-olympics/2820-1996-summer-olympics-opening-ceremony
https://en.wikipedia.org/wiki/1996_Summer_Olympics_opening_ceremony
https://en.wikipedia.org/wiki/Wedding_of_Prince_Charles_and_Lady_Diana_Spencer
https://www.history101.com/27-of-the-most-watched-events-in-history/
https://the18.com/soccer-learning/world-cup-final-viewers-tv-ratings
https://listencampaign.com/node/166#:~:text=of%20the%20event.-,The%20Wall%20%E2%80%93%20Live%20in%20Berlinwas%20watched%20by%20a%20live%20audience,estimated%20at%20500%20million%20people.
https://en.wikipedia.org/wiki/Muhammad_Ali_vs._Antonio_Inoki#:~:text=Viewership%20and%20revenue,-The%2014%2C500%2Dseat&text=The%20fight%20was%20watched%20by,on%20closed%2Dcircuit%20theater%20TV.
https://en.wikipedia.org/wiki/Larry_Holmes_vs._Muhammad_Ali
https://www.history.com/this-day-in-history/some-2-5-billion-tv-viewers-watch-princess-dianas-funeral#:~:text=On%20September%206%2C%201997%2C%20an,in%20Paris%20the%20week%20before.
https://www.nielsen.com/us/en/insights/article/2008/beijing-opening-ceremonys-global-tv-audience-hit-2-billion/#:~:text=More%20than%20two%20billion%20people,August%208%2C%20Nielsen%20reported%20Thursday.
https://www.theelvisforum.org/aloha-from-hawaii-one-billion-viewers-nope-t8938.html