Certain live tv channels won't stream on Roku TV, but they will on Roku 2, 3, Android, Web, etc.

Yeah. Basically, certain Live TV channels won’t play when I’m trying to watch them on my Roku TV (Insignia with built in Roku TV), but they will play on every other client I have, including other Rokus. For example, channel 4.1 will play without issues, but channel 2.1 will not. On the Roku TV, it will get to Receiving 99% and then it will say " Sorry, we could not play your live TV channel". However, when I go through the HDHRViewer 2 plugin, I have no issues playing any of the channels. Any thoughts?

I am having this exact issue.

I’m having the exact same problem. I posted a similiar question:
forums.plex.tv/discussion/300760/roku-hdhome-run-live-tv-performance

Nothing (Live TV) streams on Xbox One - count yourself lucky.

If I reduce the stream quality to like 2MPS then it works, but the quality is pretty bad.