All addons needs to be build by yourself. There is no addon repo for old images.
Thanks for the answer, I was afraid of something like that... 
Posts by Jippy
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Last images can be found here: Index of /images/a20/
They are build from GitHub - LibreELEC/LibreELEC.tv at 93e40294ead3fc8023389903a3179ecc7ca40b11
Hello, I installed this image on my banana pi pro, but the PVR client for IPTV is missing there. How can i install it?