My big gripe is that X videos don't seem to support Chromecast at all. I used to watch SpaceX launches on my TV :(
Load it in Chrome and cast the tab. Sucks that you have to involve your computer for the duration, but that's the most reliable way to do it IMO.
Just watch the everyday astronauts coverage on YouTube! Great commentary, and feed from the official space x stream as well as their own cameras
Space.com's YouTube channel always has a mirror of the official SpaceX livestream:
https://www.youtube.com/@VideoFromSpace/streams
Or if you would like additional commentary and extra camera views, there are independent channels such as Everyday Astronaut, NASASpaceFlight, Spaceflight Now, etc.
I now use AirPlay to extend a MacBook screen to my TV and play the stream that way. But it's so needlessly complicated compared to before :/