Current setup:
HDHomeRun Extend OTA tuner North America
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KODI machines:
NVIDIA Shield, Win 7 Laptop, Raspberry Pi3 [LibreElec]
All running PVR WMC Clients [these all work fine]
CANNOT run using TVHeadend HTSP clients and TVHeadend 4.0 backend
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PVR: [only 1 in use at a time and of course I switched the PVR clients to match each server configuration]
Win 7 Laptop ServerWMC
or
Raspberry Pi 3 LibreElec running TVHeadend 4.0 [set up using Ronnie Bailey's excellent video to the letter by pausing at each step to assure I followed his exact steps]
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Ok, so I failed with my first attempt using LibreElec's included TVHeadend/backend to run as everything was so pixelated and freezing as to be unusable.
So I just kept all the other LibreElec features running and used this Raspberry Pi for my bedroom TV/Kodi usage and PVR WMC Client addon.
I purchased a 2nd Raspberry Pi 3 to be used for just a TVHeadend Backend server using LibreElec but once again just the excessive pixelated live TV & recorded shows. Nothing else was added to his RPi. [I did not even add any EPG linkage [wish Ronnie would do a video on this] so obviously what ever did not work in the original KODI/TVHeadend configuration still does not work with a bare bones RP3/LibreElec/TVheadend/backend.
Now my Win 7 ServerWMC/WMC works fine with the same tuner and no pixel/freeze problems so I don't believe it is my antenna/tuner setup UNLESS somehow ServerWMC does a better job of tolerating bad signals [digital should be digital no matter what] but I don't want to keep my laptop on 24/7.
At this point I don't know where to turn.