[mythtv-users] Setting up a replacement Myth server

[Michael T. Dean]

On 08/01/2011 10:57 AM, Eric Sharkey wrote:
> On Mon, Aug 1, 2011 at 10:26 AM, Michael T. Dean wrote:
>> However, if there's anything different
>> about the tuners ability to receive certain channels or how they go
>> about tuning the channel (i.e. going from a PVR-150 using internal tuner
>> to using a PVR-150 using S-Video output with a channel change script
>> that changes channel on an STB), you will want to "Delete all Video
>> Sources" and re-create the source and re-scan for channels.
> Is it not sufficient to just create new sources for the new tuners?
>
> In the past when I've deleted a source from which I had recordings
> still on disk, it removed the ability for the frontend to correctly
> report on what the channel had been at the time the recording was
> made.  Everything is still usable, but you get some weird looking
> stuff in the front-end interface.
>

Well, keeping unconnected Video Sources (and Capture Cards) isn't a 
well-tested (possibly not even a supported) configuration.  Anecdotally, 
it has been known to cause problems (where everything appears to work 
fine for a while, then one day, mythbackend is restarted and nothing 
works/there are no upcoming recordings/guide data is wrong/...).

If you delete the channel from which you recorded a show, you will see 
see #1234 (or whatever the channel ID is) in the UI rather than channel 
number or callsign.  If you get a new, but different, channel with the 
same callsign, the UI would show the recording as being from the wrong 
channel.  I was willing to live with both of these issues--especially 
since Watch Recordings is a temporary location for me (I watch and 
delete everything).  For those who want to archive old recordings from 
no-longer-existent channels, you can move them to MythVideo videos.

Eventually, I plan to fix these issues such that the recordings do not 
depend on channel definitions, but it won't be until after the new 
recorded file schema change is complete.

Mike