[mythtv] 4 digit channel support

[Daniel Kristjansson]

On Tue, 2010-11-16 at 17:48 -0500, Chris Weiland wrote:
> Fair enough.  I don't think that a 100% reliable detection method is
> possible here, but that should be close enough.  But back to the real
> issue...
> 
> Is there anyone knowledgeable and willing to help me with this change
> (specifically with the digit count detection)?  Or is there somewhere
> in the Myth code where I can see a similar example?  I'm experienced
> enough to make the changes, but I would much prefer to have some help
> from someone that is familiar with the existing codebase so that I
> don't step on the existing functionality/style.

Sure, send me what you have so far. I'll give direction on the rest.
I don't have a firewire setup, but I did some work on it in the past
so I'm familiar with the code.

-- Daniel