NBC estimates 17 million in US saw opening of Tokyo Olympics
Fireworks illuminate over the National Stadium during the opening ceremony of the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Shuji Kajiyama)

Fireworks illuminate over the National Stadium during the opening ceremony of the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo. (AP Photo/Shuji Kajiyama)

Jul. 23, 2021 07:18 AM EDT
Japan's Naomi Osaka reacts after lighting the cauldron during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/Ashley Landis)

Japan's Naomi Osaka reacts after lighting the cauldron during the opening ceremony in the Olympic Stadium at the 2020 Summer Olympics, Friday, July 23, 2021, in Tokyo, Japan. (AP Photo/Ashley Landis)

Jul. 23, 2021 01:23 PM EDT