Think I may have tried Beyond TV years ago but don't remember much about it. As @jtanderson said, I suspect Channels exceeds in almost every way.
The real question is should you consider Channels over Plex, JellyFin or Emby. Short answer is yes. Channels is so much more flexible in many ways than those options and much easier to setup. The slow demise of TVE means you have to use certain 3rd party solutions (ADBTuner, EPlusTV, CC4C, etc) and/or OTA channels to get certain stations into Channels, but Channels is able to accommodate all of those whereas the other platforms are able to support in a more limited capacity (especially Plex). And the great new is if you like one of those other platforms, you can use Channels as a backend server to all 3 of those.