[mythtv-users] MythTV and Comcast (SF Bay Area) transition to digital

Michael C. Smith michael.c.smith at alumni.cmu.edu
Sun Apr 19 05:44:44 UTC 2009


Hi Raymond,

Thanks!  That seems to get me closer.  I've got some recording events
tomorrow (including a now-resolved conflict).  I'll post back the results.

Regards,

Mike

Raymond Wagner wrote:
> Michael C. Smith wrote:
>> When I (repeatedly) scan for channels on "[ DVB : 0 ]", I have to
>> continually reset the frequency table to "Cable", the modulation to
>> "Cable (QAM-256)" and the ATSC Channel Separator to "(5.1) Period".  I'm
>> would have thought that MythTV would remember the settings.
>>   
> Nope.
>> I run mythfilldatabase to populate the listings, but the listing data
>> for the digital channels is VERY sparse.  For example, I get listings
>> for channel 2 (KTVU), but no data for 2_1 (KTVUHD) or 2_2 (KTVU-SD).
>> The only digital channel listings I get are for channels 89, 89#6,
>> 119#0, 119#2, 119#3, 119#4 and 128#0.
>>   
> Mythfilldatabase will try to match up shows where it can, but for most
> channels, you will have to go in and manually set a XMLID.  Go onto
> your SD account, open up your digital listing, and mouse-over a
> channel to get its ID.  Then, apply it to the channel either in the
> mythtv-setup channel editor, or in the editor in mythweb.  You should
> go back through the ones that have data, and confirm that the XMLIDs
> were applied properly.
>> Mythweb shows my scheduled recordings will all use the PVR-250.
>> Conflicts aren't resolved by using both tuners.  (Neither of these are
>> unexpected, given the lack of "digital" listing data.)
>>   
> Do you have your recordings set to only record on a specific channel?
> Since you're using separate lineups for analog and digital (as you
> should), the analog version and the digital version are seen by MythTV
> as two independent channels.
>> When trying to record a program, I get the following results:
>>
>> I try to record something from channel 2, and MythTV uses the PVR-250,
>> not the HD-5500.
>>   
> As above, you will have to tell it to record from any channel, or from
> channel 2_1.
>> I record something (The Bernstein Bears) on channel 119#0 (Sprout) and I
>> actually get the Home Shopping Network???
>>   
> MythTV only knows what the cable company tells it.  With digital TV,
> you have several channels within a single frequency band.  If the
> cableco doesn't tell myth what the channels are, myth will define them
> based off the frequency.  While Sprout may be cable channel 119 on the
> lineup, HSN is on frequency 119.  As mentioned above, check the
> channels against their given XMLIDs and make sure they match up.
>
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