[mythtv-users] DTV Transition

Michael T. Dean mtdean at thirdcontact.com
Thu Jun 11 19:03:14 UTC 2009

On 06/11/2009 02:25 PM, Allen Edwards wrote:
> Could the first person to successfully do this Saturday please write 
> down what works.  I have asked this before and getting, try this and 
> if it doesn't work try this....  drives me nuts.  I followed the 
> thread referenced above

I'm assuming you mean: 

> and by the time I followed all the links, I was in an analog scan howto.

Do you mean http://www.mythtv.org/wiki/Frontend_Channel_Editor ?  If so, 
that is /not/ an analog scan howto (QAM-256 and QAM-64 are by definition 
digital).  I did, however, add explicit mention of OTA ATSC so that 
people who see cable and think it doesn't apply (though the process is 
identical for both) know that it does apply.

>  This is digital off the air we are talking about.  Cable users do not 
> need to re-scan.
> Lots of people are going to be doing this in a couple of days so if 
> some kind user would document if for everyone else you would make a 
> lot of people happy.

I know /exactly/ how I'm doing my rescan...  Backup DB ( 
http://www.mythtv.org/wiki/Database_Backup_and_Restore ) /and/ backup 
xmltvid's ( 
), delete all video sources ( 
http://www.gossamer-threads.com/lists/mythtv/users/264034#264034 ), 
create video source, connect input to most-preferred card, do a full 
channel scan, connect inputs to other cards in the order of preferred 
usage, restore xmltvids ( 
).  Then, after 10 minutes of effort (5-7 of which are waiting for the 
channel scan to complete and 1 of which is waiting for the database 
backup (50-seconds of which is waiting for the CPU to gzip it)), I'll be 
back up and running as if nothing changed.

I also know that this approach works great--I've done it 10's of times 
and it has worked every single time.


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