[mythtv-users] Channel scanner can't find all channels

[Rob Dewhirst]

I've got an AverMedia180 picking running in Myth 0.20, connected to my  
unencrypted digital cable.

The Myth channel scanner picks up all but a couple of channels, but  
the ATSC tuner in my TV will pick up those two channels just fine  
connected to the same source.  I've tried all the Frequency Table  
options in the channel scanner (at least all the Cable frequencies)  
with both QAM 64 and 256 modulation -- I know that's what my cable  
provider uses.

Any ideas?  The channels are in the 105-x range, and the scanner finds  
channels adjacent to these just fine.

I'd be happy to post more detailed config info -- I just don't know  
what's relevant.