Chat-Notification volume (Fullscreen-Mode):
The stream will probably hang between talks. But it continues automatically as soon as the next talk starts.
If the stream doesn't work you can watch the URL of one of the video quality links with the VLC media player (Media → Open Network Stream…). VLC Download (for Android, for iOS)
You can also use the video quality links to download the live stream and watch it later on (Save link as…). But the download only contains the live stream since the beginning of the download.
The recordings usually appear on the next day in the archive.