[mythtv-users] updating out of date channels

[Darac Marjal]

On 20/10/2018 20:45, Tim Draper wrote:
> Yet again, UK Freesat has moved channel details so some channels are no longer working. tonight seem to be BBC one&two HD.
> my last channel scan was maybe 4 months ago where i did a big run through of the channels to get things as close to 'book' as i could which went ok.
>
> i think we all know the hassle it is to rescan and set the guide up manually. it's fine when things don't change too often but in the UK, things seem to change reasonably often. in the last month or 2, channel4HD, MotorsportUK, and these two BBC channels have all needed ammendments, and thats of the ones we've noticed were broken when we tried to livetv watch them.
>
> Whats going to be the most painless way going forward? this time it's to get BBC one&two working again, next time would be different channels.
> i know there were rumors of myth28/29 releasing a  web based mythtv-setup that afaik the first release was going to feature the ability to channel scan via it. afaik thats still not been released which is a shame.


As I'm in the process of rescanning, myself, I thought I'd mention how I
do a rescan.

First of all, fetch a copy of Mythupchuk
(https://github.com/StarsoftAnalysis/mythupchuk). This is a script that
will give you an easier-to-edit file than editing the database. Run
"mythupchuk --fileupdate somefilename.txt" to save your current channel
listings to somefilename.txt.

Next, on your backend server, stop the backend service, then run
"mythtv-setup". Select "Channel Editor", then "Scan Channels". Choose
what options you'd like (e.g. TV only, unencrypted only for example),
then set the scan type to "Scan Existing Frequencies". When the scan
completes, let mythtv update "old" channels, ignore "missing" channels
(they may well be temporarily off-air) and insert "new" channels. Quit
out of mythtv-setup and re-start the backend.

Finally, run "mythupchuk --fileupdate somefilename.txt" a second time.
This will pull in the new channels and update the off-air/deleted status
of existing channels. Edit the file and set any channel assignments as
you see fit. To save your changes, run "mythupchuk --dbupdate
somefilename.txt --commit" to write back to the database (the upside of
this is that your channel numberings are saved in a text file, and if
they move around, mythupchuk forces them back onto the numbers you like).


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