[mythtv-users] Channel Scan Issue

[Jay Foster]

On 3/28/2019 2:24 PM, Allen Edwards wrote:
>
>
> 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 do not know if that will work (I do not know how freqid is related to 
the transport).  What I did do successfully for several station 
relocations is the following:
Using the mythtvbackend-setup application, choose menu item 6.
For each input/tuner, I first selected each existing channel on the 
transport that was moving and deleted it (press d).  This is so when the 
same channels are added by scanning the new transport, they are not 
duplicates.
For each input/tuner, you may need to edit the transports (last item in 
the menu I think) and arrow down a couple of times to add new 
transport.  For the transport frequency, enter the *center* frequency 
for the new physical channel (31 in your example).  You will need to 
lookup the channel frequencies for your region (you did not specify).  
Google/wikipedia is a good source for this (TV channel frequencies).
For each input/tuner, select scan from the menu, and choose scan 
existing transport.  For the transport, you should now be able to select 
the new channel (31) and scan.

This procedure worked fine, except the last channel I needed to 
relocate.  For some reason, MythTV continued to attempt to tune the old 
transport (physical channel) which does not work.  I ended up deleting 
everything and starting over, which I agree is a major pain.  I would 
end up with some conflicting channels, which the only way forward was to 
choose to ignore all of them.  Then I manually added the ones that I 
wanted using the process above.

Jay
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