Hello,
I have Plex on LG TV, on Roku, on Android phone, on my chrome browser and on my Samsung Tizen TV.
On every platform, when i’m watching live tv with HDHomerun, it direct plays or direct streams, but not on my Samsung TV even if in the settings it says that it is allowed, it will transcode automatically. It only works with movies or series on my server, but not live tv. Looks like it’s not working since the last update.