[mythtv-users] Guidance for phase 9

Tom Dexter digitalaudiorock at gmail.com
Fri Aug 16 23:02:03 UTC 2019

On 8/16/19, Tom Dexter <digitalaudiorock at gmail.com> wrote:
> On 8/16/19, Klaas de Waal <klaas.de.waal at gmail.com> wrote:
>> Would the channel update problem discussed here be solved if new
>> channels found by a mythtv-setup channel scan have the xmltvid copied
>> from an old channel, where the old channel is identified by the ATSC
>> major/minor channel numbers found in the new channel?
>> Klaas.
> That would help in terms of retaining the xmltvid on any newly created
> channels, which is a help.
> For myself however, the issue is the very fact that a new channel
> always gets created if the frequency changes (if I understand
> correctly). In a best case, that is where the callsign of the new
> channel doesn't change, and possibly the xmltvid gets retained as
> you're suggesting, scheduling rules the guide data should be OK.
> However the fact that a new channel gets created at all is massively
> undesirable for me.
> If the old channel id gets deleted, a lot of references no longer
> work...that is anything that relies of chanid...for example the
> channel information displayed for existing recordings. I can't recall
> if there's an option to NOT delete the old obsolete channel, but would
> seem to be a bigger mess to me.
> For my purposes, the only thing that would work for me is if the
> frequency information (mplexid, serviceid etc) gets changed on the
> existing channel. That is for example, if the scan could do that
> purely based on a match of major/minor ATSC pretty much ignoring all
> other factors. I'd imagine there are reasons that this isn't what's
> done, and probably reasons it would be an issue in some situations,
> but that's the crux of why I've taken to my surgical frequency changes
> on my existing channels. Doing that, I'd never know anything changed
> at all.
> Tom
Interestingly, I'd forgotten that Robert Kulagowski from
schedulesdirect posted earlier in this thread, that some software does
exactly what I'm referring to. That is, assuming a station is in fact
the same station purely based on ATSC major and minor number...and not
based on frequency.


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