I have been looking at JellyFin as a replacement for my aging Emby install, but the over-the-air TV support is weak and mostly broken. I am a FOSS fanboy, but first and foremost TV has to work for my household, not just for me with glitches. I suppose the correct answer is to contribute to improving it, but like most folks, free time is not copious.
The US has been really flaky lately. Have you tried rebooting it?