You make it sound like NBC is some sort of obscure specialist service, but it turns out that they're actually a mainstream national broadcaster, available not just over the air but also on just about every satellite, cable, and streaming provider in the country: https://en.wikipedia.org/wiki/NBC
Not only that, but they're the official Olympic broadcaster in the USA! Around 22m watched it on their broadcast services, and a further 3m on streaming.
In reality, an overwhelming majority of Americans watching the opening ceremony were doing so via NBC.
alt Hacker News
You make it sound like NBC is some sort of obscure specialist service, but it turns out that they're actually a mainstream national broadcaster, available not just over the air but also on just about every satellite, cable, and streaming provider in the country: https://en.wikipedia.org/wiki/NBC
Not only that, but they're the official Olympic broadcaster in the USA! Around 22m watched it on their broadcast services, and a further 3m on streaming.
In reality, an overwhelming majority of Americans watching the opening ceremony were doing so via NBC.