[mythtv-users] [Slightly OT, but not] MythTV w/pcHDTV-3000 w/Comcast (QAM or ??)

[Ben Kamen]

While I'm waiting for warmer weather (freezing rain today - everything coated in thin ice.) to get a more omni-directional outside OTA antenna up (The towers here in Champaign, IL are in diff directions), I decided to scan my ComCast for HD channels which I know they provide in addition to the analog channels (still).

Everything I've read points to the fact that they can't encrypt OTA channels (and must be clear-QAM) and silicondust's website even shows the clear QAM channel list for ComCast here.

I'd like to use them on my MythTV if I can get 'em.

Using pcHDTV's dvb tools, when I scan the CATV cable I see a lot of this with my pcHDTV-3K:

_./dtvscan -fl -o comcast_scan.txt -dvb 1 -q_
============================================================================
channel = 14 QAM_256
Signal: 93
look for sync
got to here
PAT found ckets
PAT found ckets
PAT found ckets
PAT found ckets
PAT found ckets
PAT found ckets
PAT found ckets
PAT found ckets
Unable to recieve valid packets
did find pat
`ERROR vct item ptr null couldn't get channel info
============================================================================
channel = 98 QAM_256
Signal: 96
look for sync
got to here
PAT found ckets
demux_ts: demux error! PAT with invalid CRC32: packet_crc32: 00000000 calc_crc32: 9316d875
PAT found ckets
demux_ts: FIXME: (unsupported) PAT consists of multiple (255) sections
PAT found ckets
demux_ts: demux error! PAT with invalid CRC32: packet_crc32: 00000000 calc_crc32: 9316d875
PAT found ckets
demux_ts: FIXME: (unsupported) PAT consists of multiple (255) sections
PAT found ckets
demux_ts: demux error! PAT with invalid CRC32: packet_crc32: 00000000 calc_crc32: 9316d875
PAT found ckets
demux_ts: FIXME: (unsupported) PAT consists of multiple (255) sections
PAT found ckets
demux_ts: demux error! PAT with invalid CRC32: packet_crc32: 00000000 calc_crc32: 9316d875
PAT found ckets
demux_ts: FIXME: (unsupported) PAT consists of multiple (255) sections
PAT found ckets
demux_ts: demux error! PAT with invalid CRC32: packet_crc32: 00000000 calc_crc32: 9316d875
PAT found ckets
demux_ts: FIXME: (unsupported) PAT consists of multiple (255) sections
PAT found ckets
demux_ts: demux error! PAT with invalid CRC32: packet_crc32: 00000000 calc_crc32: 9316d875
PAT found ckets
demux_ts: FIXME: (unsupported) PAT consists of multiple (255) sections
PAT found ckets
demux_ts: demux error! PAT with invalid CRC32: packet_crc32: 00000000 calc_crc32: 9316d875
PAT found ckets
demux_ts: FIXME: (unsupported) PAT consists of multiple (255) sections
PAT found ckets
demux_ts: demux error! PAT with invalid CRC32: packet_crc32: 00000000 calc_crc32: 9316d875
PAT found ckets
demux_ts: FIXME: (unsupported) PAT consists of multiple (255) sections
Unable to recieve valid packets
no pid or atsc tables found

============================================================================

And that's across the band up into the 100's. (channel 117 is the last signal found)

Am I doing something wrong?
Is there firmware I should have? (using what's currently available on pcHDTV's site for this card)
Should I be doing the scan with MythTV's channel scanner (before I start mucking with my official channel database)?

Thanks a bunch,

  -Ben