https://www.cnet.com/news/nbc-super-bowl-live-stream-eyes-patriots-eagles-matchup/

As the head of NBC Sports Digital, Cordella will lead his team in streaming 11 hours of the big game and related coverage -- and they have to make sure it all goes smoothly. He's not taking any chances.

This year, he's prepared 19 backup feeds. Most streams typically have one or two, just in case a problem arises.