[mythtv-users] Using XMLTV source with mythexternrecorder keeps adding additional channels

[OpenMedia Support]

> On Tue, 16 Jun 2020 15:13:52 +1200, you wrote:
>
>>I've got two IPTV recorders defined that utilise the same xmltv feed.
>>
>>IPTVNZ is a FreeBox device
>> - 12 channels defined via iptv-nz.m3u8
>> - Video Source IPTV_NZ  -> NZ xmltv epg feed with 30 channels
>>
>>VLCNZ is an EXTERNAL device with 16 channels defined via
>> - 16 channels defined via vlc-nz-channels.conf
>> - Video Source VLC_NZ  -> NZ xmltv epg feed with 30 channels
>>
>>The grabber uses the same EPG data but I have two different sources to
>>avoid confusion.
>>
>>running mythfilldatabase the IPTVNZ channel listing stays the same and
>> any
>>non-matching channels in the EPG file are flagged and ignored.
>>
>>2020-06-16 14:57:05.029634 I  XMLTV config file is:
>>/home/mythfe/.mythtv/IPTV NZ.xmltv
>>2020-06-16 14:57:06.035537 N  Unknown xmltv channel identifier: tv.11 -
>>Skipping channel.
>>2020-06-16 14:57:06.035737 N  Unknown xmltv channel identifier: tv.12 -
>>Skipping channel.
>>2020-06-16 14:57:06.717274 N  Unknown xmltv channel identifier: tv.21 -
>>Skipping channel.
>>
>>Whilst with the EXTERNAL Feed the additional channels, which I don't want
>>to load into my MythTV environment, get added against the "VLC NZ"
>>sourceid.
>>
>>2020-06-16 14:57:14.592501 I  XMLTV config file is:
>>/home/mythfe/.mythtv/VLC NZ.xmltv
>>2020-06-16 14:57:20.231268 I  Updated programs: 53 Unchanged programs:
>> 5499
>>2020-06-16 14:57:20.262160 N  Data fetching complete.
>>
>>
>>These are both using the same EPG data file
>> https://i.mjh.nz/nz/epg.xml.gz
>>so I don't understand why one tuner/source works as I expect and the
>> other
>>tuner doesn't.
>>
>>I've taken a look at the code under
>> - libs/libmythtv/programdata.cpp
>>and in theory it should work as I expect. At present the only work around
>>I've got is to tag the unwanted channels as NOT visible.
>
> If you add "--only-update-guide" to the mythfilldatabase command line,
> that will prevent it from doing any channel updates or adds.  If you
> are running mythfilldatabase internally from mythbackend, you may need
> to turn that off and run it externally from systemd or a cron job in
> order to add that option.

Hi Stephen - yes that is a workaround, just trying to understand why one
tuner causes a channel load and another doesn't