Hi,
I have spent months trying to sort this problem out and still struggling - it is the only thing holding me back from switching from my Windows 10 server completely.
I am running TVHeadend on OMV 3.0.
Everything is working perfectly except for the fact that I want to switch from using OTA EPG grabbing to using my Schedules Direct account (which gives me much better TV guide information on my current Windows server).
For this, I need the tv_grab_zz_sdjson grabber, which comes with XMLTV 0.5.69.
I installed XMLTV but couldn't work out why the grabber wasn't there.
After a lot of research, I realised that was because OMV3.0 is based upon Debian Jessie and according to this:
https://packages.debian.org/search?keywords=xmltv
the latest version of XMLTV is 0.5.63-2 - thus, the grabber is not in this older version.
What are my options?
Is there any way I can still get the latest version of XMLTV onto OMV?