This would be the WATCH LIVE page. It contains a video block that displays a live stream without ever having to be updated. When the page is loaded during a non LIVE stream, it displays something similar to below with the "LIVE IN XX days" and a "Set a reminder" button!
USE THIS CODE:
<iframe width="560" height="314" src="https://www.youtube.com/embed/live_stream?channel=UCYgA8blNuE8TgT8rTkTQwWg" frameborder="0" allowfullscreen></iframe>