[mythtv-users] Converting from DD to xmltv

[David Engel]

On Sat, Oct 13, 2018 at 10:59:58AM -0400, Peter Bennett wrote:
> 
> 
> On 10/13/2018 08:36 AM, Richard Shaw wrote:
> > I'm finally getting tired of getting incomplete information, especially
> > season and episode data, from DD. It's causing quite a few recordings to
> > not show up in Plex which we're using on Roku TVs instead of having to
> > build mini-frontends.
> > 
> > I'm following the directions from the wiki[1] but I'm not sure I'm
> > getting the whole story...
> > 
> > So i'm pretty much at the point of deleting and re-adding channels since
> > the IDs are in a different format. If I was just doing OTA I would see
> > if I could manually translate them but with Cables 200+ channels, I'm
> > not going to that much trouble.
> > 
> Another advantage to re-adding them is that you get icons for all the
> channels.
> > So far the side effects are:
> > 
> > 1. Existing recordings will show the wrong channel?
> This may or may not happen. By default the chanid is set up as a number with
> format xyyy where x is the source id and yyy is the channel number.
> Sometimes this scheme can get messed up by manual additions, duplicate
> channels etc. If your existing channels follow this scheme, they should be
> the same after re-adding and then existing recordings will show the correct
> channel.
> > 2. The wiki doesn't mention if I'll have to re-setup all my recording
> > rules...
> > 
> That should not be necessary unless you have channel specific rules. If the
> chanid and station id stay the same these should also be ok. Personally I
> never use channel specific rules. Regardless, you should check upcoming
> recordings to see if they are still working after the change.

Only station/callsign is used for channel rules.  Chanid does not
matter.  Using channel rules can make a difference in scheduling speed
for shows that are in heavy syndication.

> > I currently have two sources
> > 
> > [1] OTA
> > [2] Comcast
> > 
> > Is it possible to setup a 3 & 4 with tv_grab_zz_sdjson_sqlite and have
> > both until everything that was recorded on 1 & 2 expire?
> > 
> I cannot see that this would work or any benefit to it. You may be able to
> leave the old sources in place unconnected to any capture card in case you
> want to switch back, but I am not sure whether this will work.
> > Would there be any benefit to doing that?

This is actually the recommended way to handle "old" and "new"
sources.  For the old sources, set the grabbers to "No grabber" and
set all channels to not visible.  That will stop guide updates,
prevent scheduling and preserve the channel information for existing
recordings.

David
-- 
David Engel
david at istwok.net