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Proper way to add new channels in scan

 

 

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dheianevans at gmail

Aug 1, 2012, 2:47 PM

Post #1 of 6 (509 views)
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Proper way to add new channels in scan

We just had an OTA channel in Toronto move to a new frequency and
there'll be a couple more additions in the coming months.

When I did the channel scan to add the new channel location I came to
the place where it says something like "22 old ATSC channels found".

I'm pretty sure I hit Ignore All. When I went into the channel editor,
all me edited channel numbers were back to the channel/subchannel type
e.g. 2_1,2_2 instead of the channels I had assigned.

I'm pretty sure I had hit Ignore All on those old channels, but since
I'll have to do a few scans in the coming months, what do I need to
click to make sure my names and channel numbers for existing channels
are left alone?

Thanks.
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newbury at mandamus

Aug 1, 2012, 8:29 PM

Post #2 of 6 (493 views)
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Re: Proper way to add new channels in scan [In reply to]

On 08/01/2012 05:47 PM, Ian Evans wrote:
> We just had an OTA channel in Toronto move to a new frequency and
> there'll be a couple more additions in the coming months.
>

I missed this. What moved (from where to where)? and what is supposed to
move soon???

Geoff
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dheianevans at gmail

Aug 2, 2012, 7:14 AM

Post #3 of 6 (480 views)
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Re: Proper way to add new channels in scan [In reply to]

On Wed, Aug 1, 2012 at 11:29 PM, R. G. Newbury <newbury [at] mandamus> wrote:
>> We just had an OTA channel in Toronto move to a new frequency and
>> there'll be a couple more additions in the coming months.
>>
>
> I missed this. What moved (from where to where)? and what is supposed to
> move soon???

CJMT (Omni 2) just moved to RF40 (and moved from First Cdn Place) to
the CN Tower. In the next few months CTV2 (CKVR) should be getting a
UHF repeater in Hamilton that will be better rec'd by the GTA, and
finally CHCH 11 should be moved from VHF to UHF by the spring in order
for their signal to better hit Toronto.

Bringing this back to Myth...any idea how to add the new channels
without affecting the old?
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neil at fnxweb

Aug 2, 2012, 7:31 AM

Post #4 of 6 (484 views)
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Re: Proper way to add new channels in scan [In reply to]

Around about 02/08/12 15:14, Ian Evans typed ...
> Bringing this back to Myth...any idea how to add the new channels
> without affecting the old?

I had a major play in this area last month when my area had it's part of
the UK digital switchover (all analogue turned off).

I personally found the <ignore> options always did nothing (0.24-fixes).
At least, nothing I noticed!


That said, I began to use a modified version of a script I found on the
MythTV wiki that dumps my custom settings for DVB channels (like XMLTVID,
comm-flagging, channel number, etc.) out of the SQL to a file, keyed on the
OTA channel callsign.

Then I delete all DVB channels, rescan [existing transports], and
re-import the custom settings. If I think there's more than one channel's
worth of changes, that's what I'll do.

You then just have to re-fetch guide data, as I think they're held by
[mostly arbitrary] chanid. *That* said, using this method gives me ptryy
much the same chanids for each channel as before, so last time I did it the
guide data remained valid.

Scripts here:

http://fnxweb.com/blog/2012/06/16/mythtv-and-the-uk-digital-switchover/

You'll see the fields I care about being stored.


(I've since modified my local copy to renumber any new channels out of
the way (+10000) of my satellite box, which effectively lays claim to
100-999. Our interesting DVB is mostly 1-99 at the moment.)

--
[neil [at] fn ~]# rm -f .signature
[neil [at] fn ~]# ls -l .signature
ls: .signature: No such file or directory
[neil [at] fn ~]# exit
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newbury at mandamus

Aug 3, 2012, 2:13 PM

Post #5 of 6 (458 views)
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Re: Proper way to add new channels in scan [In reply to]

On 08/02/2012 10:14 AM, Ian Evans wrote:
> On Wed, Aug 1, 2012 at 11:29 PM, R. G. Newbury<newbury [at] mandamus> wrote:
>>> We just had an OTA channel in Toronto move to a new frequency and
>>> there'll be a couple more additions in the coming months.
>>>
>>
>> I missed this. What moved (from where to where)? and what is supposed to
>> move soon???
>
> CJMT (Omni 2) just moved to RF40 (and moved from First Cdn Place) to
> the CN Tower. In the next few months CTV2 (CKVR) should be getting a
> UHF repeater in Hamilton that will be better rec'd by the GTA, and
> finally CHCH 11 should be moved from VHF to UHF by the spring in order
> for their signal to better hit Toronto.

Thanks for the info. I will do some exploring over the weekend.


> Bringing this back to Myth...any idea how to add the new channels
> without affecting the old?

Off the top of my head, the easiest way may well be to check and change
your lineup at SchedulesDirect checking to see if the rf channel has
been changed.

Then update through mythtv-setup, using 'download lineups' NOT scanning.

And see if the channels show up in the Channel Editor.

Otherwise you may have to do a scan.

If you are comfortable with delving into mysql, you could do a mysql
backup AND a channel table backup, then scan, and dump the channel
table. And compare. Not too speedy a route...

Geoff
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dheianevans at gmail

Aug 3, 2012, 2:27 PM

Post #6 of 6 (453 views)
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Re: Proper way to add new channels in scan [In reply to]

Neil, R.G. thanks for the answers.
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