[mythtvnz] EPG via EIT after recent channel changes

[Robert Fisher]

Thank you for your time and a very plausible explanation Stephen.

I will look into making a complaint to the Freeview team or Kordia (if 
anyone knows how to do that)  prompting them to fix it.

I am still holding out hope though, that when I install my PCIe tuner 
things might improve for me because:-

1/    There are some on this list who have full 7 days of data on all 
channels while using EIT

2/    On 3 of my TVs, after the initial scans (after the channel 
changes) I had the same EPG data as I now have on MythTV but in time 
they also now have full 7 days on all channels.

I will pass this information to Freeview too if I can get hold of 
someone willing to listen.

Rob

On 23/04/22 22:02, Stephen Worthington wrote:
> On Sat, 23 Apr 2022 10:42:23 +1200, you wrote:
>
>> After my upgrade to v32 and the recent channel changes  my EPG via EIT has not been quite right (previously it worked fine for at least 3 years)Some channels show only the next 2 programmes, a couple show no data at all and the rest show 7 days.
>> My tuner is a dual HDHomeRun and I suspect that is the problem so I have ordered a PCIe quad tuner hoping that it will fix the problem.(Scheduled recordings are still working but I cannot schedule new recordings if they are not showing yet)
>> I am not competant enough to use scripts created my the likes of Mike and Stephen and to be honest I like the uncomplicated way that EIT used to meet my requirements.
>> So my question is - "for those who have the new channels and use EIT for their EPG, what type of tuner do you use?"
> It does not matter what sort of tuner.  They can all receive the
> streams that are being broadcast, including the EIT EPG streams.  So
> what matters is the software being used to collect the EIT data from
> those streams.  If MythTV was getting the EIT EPG before, it still
> will be - there has been no change in how the EIT data works.  So the
> problem is simply that the full EIT data is no longer being broadcast.
>
> To check on that, I fired up my laptop on Windows 11 and ran DVBViewer
> there.  I had it rescan the channels and then show me the EPG data,
> which it gets from EIT.  I also used the DVBViewer TransEdit program
> which has an option to analyse the streams on a mux.  From my Wharite
> transmitter, there is only now/next EIT data on the TVNZ and Discovery
> muxes for most of the channels, which is why you are having problems.
> On the TVNZ mux there is full EIT data for TVNZ DUKE+1 only, and on
> the Discovery mux there is no full EIT data for any channel.  The
> other three muxes still have full EIT EPG data.
>
> My guess is that during the recent lineup changes, some engineer has
> managed to turn off the full EIT data for the TVNZ and Discovery muxes
> somehow.  Maybe a complaint to the Freeview team or Kordia (if anyone
> knows how to do that) would prompt them to fix it.  However, as far as
> I know, full EIT EPG is not actually part of the specifications for NZ
> DVB-T transmissions - full EPG data is only promised to be available
> using MHEG5.  At the start of DVB-T transmissions, there was only
> now/next EIT data.  It was a good few years later that they turned on
> full EIT data and it was working up until the recent lineup changes.
>
> So the options for full EPG for the FreeviewHD DVB-T channels now seem
> to be:
>
> - Collect the MHEG5 data and process it yourself using mhegepgsnoop.
>
> - Use the downloaded data from NZXMLTV, which is created by web
> scraping the freeviewnz.tv site.  See
> https://nzxmltv.com/xmltv/guide.xml.  This data does seem quite good.
>
> - Use EPG Collector on a Windows machine to collect the MHEG5 EPG and
> load that into MythTV.
>
> The latter two options would require changing the xmltvid values for
> each channel to match the xmltvids in the EPG data.  With
> mhegepgsnoop, it gets it xmltvid values from your MythTV database so
> there is no need to change them as long as each channel already has a
> unique xmltvid value.
>
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