[mythtv-users] how to switch a channel to a different frequency?

[Marco Nelissen]

I scrolled through the guide for KTVU but it just said "unknown"
everywhere, so it looks like it's not getting any data at all.
"mythfilldatabase
--dd-grab-all" didn't change that. How does it actually match up the
channels defined in mythtv with the channels I've enabled on
schedulesdirect? Is it purely by the numeric id (19571/76387), the call
sign, or something else?

One other thing I noticed was that my existing KTVU recordings are fine
before April 15, and corrupted/unwatchable after. April 15 is when I last
did a full channel scan to resolve an issue with a different channel. The
non-corrupted recordings from before that time are all prefixed with 1665_,
whereas the corrupted/unwatchable ones are prefixed with 1670_. The "other"
KTVU I configured earlier today has a prefix of 1672 it seems. Not sure
what that prefix actually means though or whether it's even relevant here.




On Mon, May 13, 2013 at 7:33 PM, Michael T. Dean <mtdean at thirdcontact.com>wrote:

> On 05/13/2013 09:27 PM, Marco Nelissen wrote:
>
>> In the SF Bay Area, KTVU HD transmits on both 44.3 and 48.3 (44.3 from
>> Sutro and 48.3 from Monument Peak, per http://www.choisser.com/**
>> sfonair.html <http://www.choisser.com/sfonair.html>)
>>
>> I recently discovered that I get pretty bad reception from 44.3 for this
>> channel (even though my antenna is pointed at Sutro and other channels are
>> OK), making The Simpsons unwatchable. 48.3 is much better, so I want to
>> make mythtv use that. I went into mythtv-setup and did a channel scan to
>> add the other channel, then deleted the old one. Then I went to
>> schedulesdirect, disabled the old channel and enabled the new one, and ran
>> mythfilldatabase.
>>
>> The problem is that now when I look at the guide in mythtv, "KTVU-HD"
>> shows up with "Unknown (Unknown)" programming. I've tried changing the
>> xmltvid to both the old and the new one in mythtv-setup, but I just can
>> seem to actually have mythtv pick up the guide data for this channel.
>> Anyone using KTVU on channel 48.3 in the SF Bay Area care to share their
>> setup?
>>
>
> Are you sure it's not got any data--or is it only getting data for some
> days?
>
> mythfilldatabase --dd-grab-all
>
> See
> http://www.gossamer-threads.**com/lists/mythtv/users/449426#**449426<http://www.gossamer-threads.com/lists/mythtv/users/449426#449426>
> and
> http://www.gossamer-threads.**com/lists/mythtv/commits/**449416#449416<http://www.gossamer-threads.com/lists/mythtv/commits/449416#449416>
>
> Mike
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>
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