[mythtv] Use callsign for scheduling

[Ben Bucksch]

David Engel wrote:

>Program titles are also used as database keys in some places.
>
Yes, and it's a flaw. I've had lots of missed recordings, because the 
title changed, e.g. " -- " to " - " or caps changes. The only reason why 
titles are used is because there is no other way, because data sources 
usually don't give an ID for programs (e.g. a whole series, an episode 
etc.). If it were possible to use integer IDs instead of string 
matching, I'd advocate that also (and probably submit a patch).

(I heard Bruce saying that DD delivers such IDs for the USA? That'd be 
great and I wish all sources did that.)


Bruce Markey wrote:

> Your grabber falls short on this last point and maybe you should check 
> with the XMLTV project

The grabber does not "fall short". As Tako already explained so nicely, 
we don't have a callsign for a number of channels, and it doesn't make 
sense to make one up. The current XMLTV spec doesn't even give a way to 
express it, only "<display-name>" "for humans to refer to the channel".