For people that don't like the 45 second or so delay for YouTube live streams in comparison Twitch, but also have issues with the Twitch player in their web browser, I strongly suggest giving
Streamlink Twitch GUI a try. Using this, you can play Twitch streams in your media player of choice (such as
VLC, which works really well in my experience).
Using this for the presentation tonight at
https://www.twitch.tv/nintendo should give you the best stream quality and consistency even if you have bad Internet. You can use the command line utility for the North American presentation stream at
https://www.youtube.com/watch?v=uuC4YLLkqME if Twitch itself goes down in some sort of apocalyptic flame tonight, too (or if you still want to use YouTube despite the delay).
Hopefully a few GAFfers that tried it on Discord can also weigh in with their experience with it.