Did something change? I used to tell it to stream a channel from @YouTubeTV - now this is what I get. I don't want to use my phone to cast. That's dumb.
Thanks for the pic, make sure you have the latest app version installed, and you're connected to the same WiFi network on both devices. Restarting your devices might also help. If you're still having issues, get in touch with our live support team here: https://yt.be/help/1oSc