[mythtv] Channel list in Program Guide

[Michael T. Dean]

On 07/15/2019 04:13 AM, Klaas de Waal wrote:
> This change does not affect the database, all channels and
> videosources are still there. It is only about the selection of
> channels that are shown in the Program Guide of mythfrontend. The
> Program Guide willl now show only the channels that can be associated
> with a tuner/capture card instead of all channels in the database.
>
> On  normal MythTV system, as opposed to one used for development, each
> videosource is connected to a capture card so there is no difference
> at all. If there is an unconnected videosource then this is probably a
> configuration mistake and therefore mythtv-setup now gives a warning
> message on exit in this situation.
>
> In my development system, where there are tuners for terrestrial,
> cable and satellite, it is very convenient if only the channels from
> the currently connected videosource are shown.
> Note that each satellite has several hunderd or more channels so
> changing the visible flag for each channel is not really convenient.
> Deleting all channels and doing a rescan is always an option but this
> takes 15 minutes or so.

Another option to consider is using the already-existing channel group 
functionality.  Having a "connected channels" group (though I hope 
someone can come up with a better name for it :) that's created 
on-the-fly with your query (so it's always kept up to date, even as the 
system changes) and setting it up to be used by default (unless the user 
is already using some other group) would give the ability to see only 
what's available for recording, but would also allow viewing listings 
(if available) for other channels in the system for those who might want to.

Mike