[mythtv-users] Channel Scan Issue

[Allen Edwards]

On Thu, Mar 28, 2019 at 2:24 PM Allen Edwards <allen.p.edwards at gmail.com>
wrote:

>
>
> On Thu, Mar 28, 2019 at 1:54 PM Jay Harbeston <jharbestonus at gmail.com>
> wrote:
>
>>
>>
>> On Mar 28, 2019, at 4:20 PM, Allen Edwards <allen.p.edwards at gmail.com>
>> wrote:
>>
>>
>>
>> On Thu, Mar 28, 2019 at 12:55 PM Jay Harbeston <jharbestonus at gmail.com>
>> wrote:
>>
>>>
>>>
>>> On Mar 28, 2019, at 3:20 PM, Allen Edwards <allen.p.edwards at gmail.com>
>>> wrote:
>>>
>>>
>>>
>>> On Thu, Mar 28, 2019 at 9:51 AM George Poulson <george.poulson at gmail.com>
>>> wrote:
>>>
>>>> On Thu, 28 Mar 2019 at 15:57, Allen Edwards <allen.p.edwards at gmail.com>
>>>> wrote:
>>>>
>>>>
>>>>> I am curious why I have not had a problem with the repack.
>>>>>
>>>> I have assumed that Schedules Direct just dealt with it.
>>>>>
>>>> I noticed the other day that my TV cannot tune to some channels but
>>>>> Myth is fine.
>>>>>
>>>>
>>>>
>>>> It would be really useful if someone could say where in the World this
>>>> issue relates to :-)
>>>>
>>>
>>> I am in the United States or America.
>>> _______________________________________________
>>>
>>>
>>> In that case, I imagine your problem with your tv is that it needs to
>>> rescan the channels for changes due to repack mentioned earlier in this
>>> thread
>>>
>>> I am assuming that the same antenna is feeding your television as well
>>> as the mythtv tuners and that the signal strength to the tv and tuners is
>>> the same.
>>>
>>> Antennaweb.org <http://antennaweb.org/> has info regarding channel
>>> repack changes.
>>>
>>
>> Right.  TV not working is completely expected.  I have not done a
>> rescan.  Both HDHR boxes and the TV are split from a line coming from a
>> preamp in the attic so signal is good for all.
>>
>> What is unexpected is that Myth is working without a rescan.  I see two
>> explanations:
>> 1)  Schedules Direct takes care of translating channels to frequencies so
>> I will not have to do anything going forward
>> 2) I don't watch the channels that moved until after I did the reinstall
>> of Myth and just happened to notice the missing TV channels then.
>>
>> In case 1 I will not have to do anything on the next repack.  If case 2
>> then I will need to learn how to do a rescan in Myth.
>>
>> Anyone know if it is case 1 or case 2?
>>
>>
>> I’m confused.. Does mythtv see the channels on their new channel number?
>> If so, mythtv must have been installed after the channels moved. Sounds
>> like case 2 is the solution. Solved!
>>
>
> OK, then on 3/13/2020 Virtual channel 2 moves from real channel 44 to 31.
> Can I just go into MythWeb and change TB Channelinfo freqid for the four
> sub channum's associated with channel 2 from 44 to a 31? Or do I need to do
> a rescan on all the tuners?
>
> Rescanning is a huge pain because the scan picks up the wrong station for
> one of the channels and it is a pain to fake it out. I can't even remember
> what I did.
>
> I will also have another repack on 5/1/2020 for channels 7 and 11 so
> whatever I need to do, I will need to do twice.
>
> Allen
>

I recalled my issue with the scanning.  I can receive channel 7, KGO as
either real channel 7, which I want, or real channel 35 which I do not
want.  If I do a scan, Myth finds 7 and then overwrites it when it gets to
35.  What I think I had to do was do the scan and then do another scan and
interrupt it before it got to 35.  Not sure but I think that is what I did.

I would like to rephrase my question. When there is a repack on 3/13/2020,
do I need to do anything?  Will the information from Schedules Direct just
update everything?  If not, how do I modify the Myth database to get the
new information in. I really do not wish to do a rescan because besides the
above, I need to edit the result to eliminate the channels I don't want.
As I recall, about half the channels end up with no program information
because I have them blanked out at Schedules Direct but a rescan puts them
in the lineup anyway. My tuners are first generation HDHR boxes of which I
have 2 (4 tuners).
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