re: most watched sporting events
The World Cup final would have even more. But even the Euro final is bigger than the Olympics. Food for thought
The following table is cited from an article in the Media Guardian on Dec 23, 2004, titled "Euro final tops TV sports league":
1. Football: Euro 2004 final Portugal v Greece 153 million 2. Olympic Games: opening ceremony 127 million 3. Olympic Games: closing ceremony 96 million 4. American football: Super Bowl 95 million 5. Olympic Games: men's 100m metres 87 million 6. Olympic Games: men's 200m freestyle swimming 66 million 7. Formula one: Monaco grand prix 59 million 8. Football: Champions League final Porto v Monaco 56 million 9. Basketball: NBA finals 25 million 10.= Tennis: Wimbledon women's singles final 21 million 10.= Tennis: Wimbledon men's singles final 21 million 12. Cycling: Tour de France final stage 16 million 13.= Football: FA Cup final Millwall v Man Utd 9 million 13.= Horseracing: Grand National 9 million 15. Rowing: University Boat Race 5 million