Do you know of anywhere to watch them live? I found this https://streaming.media.ccc.de/ but I'm not 100% sure it's what I want

That is probably the correct location for live streams. If it doesn't work, https://twitter.com/c3voc will know what's up.

The Streams will later be edited and uploaded to https://media.ccc.de/ where they will appear incrementally a few days (or sometimes even hours) after the talks are over. So it's usually not a problem to miss a talk.