[mythtv] [mythtv-commits] Ticket #3418: [13136] prevents seeing channels with duplicate callsigns

[Daniel Kristjansson]

On Sun, 2007-05-06 at 14:24 -0400, Michael T. Dean wrote:
> On 05/06/2007 02:01 PM, MythTV wrote:
> > #3418: [13136] prevents seeing channels with duplicate callsigns
> For the benefit of the OP, can we go a step farther and say that Myth 
> requires that any channels with different programming content must have 
> unique callsigns?  The OP does not have his system set up that way 
> ("I've been unable to browse listings for channels with duplicate 
> callsigns, even though they have different programming.").

Pretty much yes. If you are going to have callsigns they
must be unique, the workarounds in MythTV are mostly for
blank callsigns.

> The reason I'm asking first is because of [13407] ( 
> http://svn.mythtv.org/trac/changeset/13407 ).  Regarding that change, 
> Daniel, are we really saying that blank callsigns are allowed in a valid 
> MythTV configuration or is the extra code just to try to prevent 
> failures even with broken configurations?

It is extra code to avoid some avoidable failures when there
are blank callsigns. Not all problems are avoidable when you
have blank callsigns because there can be a real ambiguity as
to which channels are equivalent.

-- Daniel