[mythtv-users] channel scan missing channels

[Michael T. Dean]

  On 12/14/2010 01:50 PM, Steven Adeff wrote:
>>>   On 12/13/2010 04:54 PM, Steven Adeff wrote:
>>>> In doing a channel scan on my parents new mythbackend we've noticed
>>>> that Myth isn't finding all the channels that we find using the
>>>> digital tuner in their HDTV. I've done full scans of "Cable", "Cable
>>>> IRC" and "Cable HRC" at QAM-64, 128 and 256. I just can't seem to get
>>>> Myth to see the channels. I need to try to create the channel by hand
>>>> to see if Myth can tune them, but I'm wondering if anyone else has run
>>>> into this before?
> anyone have any ideas? there's a few channel's Myth just won't find
> that the digital tuners they have *do* find, and they are HD channels
> so it would be nice if I could get Myth to tune them.

Have you tried to see if any other application using the exact same 
hardware (the PC and the PC tuners) can find them?  Something like 
dvbscan?  http://www.mythtv.org/wiki/Dvbscan

Could well be tuner sensitivity/interference, etc., so we need to prove 
that it's actually the software--meaning we need to see some other 
software that uses the same hardware find those channels.

Mike