What often works for me is to open the devtools in Chrome, go to the Network tab and then load the stream. Sometimes you can directly see the url, sometimes you can find it in API requests.
I’m not on my desktop atm, so I can’t check it for you.
Thanks! I’m getting a working url for the advertorial that comes first, when the actual broadcast starts, I don’t see any other URL appearing though… What does your config or automation for streaming look like? Do you use Media Extractor, or maybe just play via media_player.play_media service?