I have a configuration with PMS 1.16 running on a RPI - no issues, can pick up my libraries from NAS etc. TvHeadend running on another RPI with KODI Libreelec and I can use KODI to view live TV through the tuner on this PI. Can also record and view recordings (made through KODI) using Plex.

However in Plex I cannot view EPG or even get LiveTVH to talk to TvHeadend, bundle is in correct directory, plug in is picked up Plex. Settings in plug-in - user on TvHeadend, IP address to connect to, profile to use etc. But LiveTVH does not appear anywhere in Plex other than in the plug-ins list.

I have been trying to set up Live TV/ DVR using the wizard - does not find tuner on TvHeadend server. I feel sure that I had this working at some point, when all on same RPI - but due to performance have split out.

Hope this makes sense, nothing obvious in terms of errors jumps out from logs