Setup a DVR/Live TV Tuner in plex media server. I used a VU+ Zeor 4K
The guide is what i have done in a couple of hours on a sunday evening, and not a 1:1 copy/pasta installation walktrough.

Live TV in plex is a nightmare.
Especillay the EPG(XMLTV) crap...

But this solution has the advantage that you can use CI encrypted channels.
Which is with the most (and suported tuner from plex) not possible.

This "guide" was to archive and document the installation progress of all kind of things.
Because in a couple of years/months i cant rember what i have done, and perhaps i need in the future again.

• Install the VU+ Receiver
• Unwrap / put all cables in
• Optional: Put in your CI module with the smart card
• Flash it with OpenVIX image
• Copy HRTunerProxy plugin to it
• Reboot device
• Configure plugin to use Bouquet
• Setup EPG fetch script
• Add tuner in plex
• Enjoy (your not so great live tv in plex)

Do a basic setup of the STB/Receiver and proceed with the installation steps below:

• Format USB Stick with FAT
• Extrag image to stick
• Power off receiver
• Put USB stick in
• Power receiver on
• Wait for status led to flash (pulsating = flash in progress)
• Power receiver off
• Remove USB stick
• Power receiver on
• Proceed instalaltion guide
• Optional: sort the channels

• Copy content of the plugin folder to /usr/lib/enigma2/python/Plugins/SystemPlugins/HRTunerProxy on the receiver
• Reboot the device
• Set the Bouquet you want to use in the plugin settings

• Copy/Download the epg_stb.sh script to the plex server
• Edit epg_stb.cfg to match your needs
• Run the script epg_stb.sh GET_ALL to fetch EPG data from the Receiver

• Add the tuner, if not shown, use ip/full url (http://<ip>:6081)
• Set the EPGXMLTV (downloaded via script above)
• Continue setup process
• Let plex finish the setup

• https://github.com/OpenViX/HRTunerProxy
• https://forums.plex.tv/t/epg-to-xml-from-enigma2/312787
• https://forums.plex.tv/uploads/short-url/q34sQk25RjY6e83CDJaVHnOI1r5.zip
• https://www.openvix.co.uk/index.php/downloads/vu-plus-images/vu-zero-4k/
• https://meintechblog.de/2018/03/03/pimp-my-plex-dvr-live-tv-und-tv-recording-per-vu/
• OpenViX/HRTunerProxy#55
• https://forums.plex.tv/t/enigma2-support-for-plex-dvr-livetv/194136/555
• https://github.com/cvarelaruiz/owi2plex/tree/master ¹

¹) Not used here, but seems interesting/promising