[mythtv-users] Recordings problems after FCC bandwidth grab

[Jim Abernathy]

On 11/5/18 7:01 AM, Michael T. Dean wrote:
> On 11/02/2018 05:01 PM, Christopher Sean Hilton wrote:
>> On Sat, Oct 27, 2018 at 12:18:42AM -0400, John Wolf wrote:
>>>     Hello,
>>>     I have a myth system that started as a mythbuntu system with .25 
>>> & Ubuntu 12.04
>>>     running an us ota hdhr. It is currently on Myth .27.  When a 
>>> couple of the
>>>     stations had to give up their spectrum they combined their 
>>> transmissions with
>>>     their sister stations in the same area.
>>>     Ever since, recording shows on these channels most of the time 
>>> the recording
>>>     stops before the end of the show and later recrecordings on 
>>> other channels fail.
>>>     I have deleted all the tuner, channel and transport data and 
>>> rescanned the
>>>     channels.  At this point channel 26 is being transmitted by 
>>> channel 2, and
>>>     channel 45 is transmitted by channel 22.  All the schedule data 
>>> is being received
>>>     for all the channels and it starts recording the shows but has 
>>> problems after the
>>>     shows start.  If it is just recording shows from the channels 
>>> that did not change
>>>     it works fine.
>>>     I wondered if anyone has seen this behavior after the changing 
>>> of the channels.
>>>     Thanks for any suggestions.
>>>     John
>> The FCC project is called "Repack". I also started with mythbuntu and
>> upgraded as far as I could. I get OTA channels from a set of HDHomeRun
>> devices that are connected to antenna feeds in my attic. This is
>> because it's easier to get TCP/IP into my basement where the mythtv is
>> than it would be get get raw coax from the attic antenna feeds.
>>
>> For "Repack" I had to delete my HDHomeRun tuners, then rescan
>> them. The last step was to re-attach each channel to the it's schedule
>> data. This worked fine for me but we are only in the first phase of
>> repack here. Before I did this I got blank recordings because the
>> mythtv would improperly program the HDHomeRun's tuner.
>
> Yeah, you're almost definitely leaving something configured for the 
> old channel information that's causing the problem.  I have no idea 
> what, specifically, but the easiest way to ensure you get a clean scan 
> is to "Delete all Video Sources" in mythtv-setup and then 
> reconfigure.  See https://lists.gt.net/mythtv/users/264034#264034 .
>
> Mike


Is there a way to know if the local TV stations are doing this change to 
OTA channels? I remember several years ago they had PSA commercials to 
remind everyone to rescan their TVs to pick up the changes.  That was 
before I built my latest mythtv.

Jim A