I'm in the UK, and I have multiple possible sources for my channels.
I have a PVR-250, Cable TV and an avermedia DVB card.
The cable TV will come through the PVR-250s Svideo socket.

I can get BBC1 on all 3 of the sources, but how do I make sure that Myth knows that the BBC1 on each of them is the same channel?

So that if I'm recording something off the Cable box, and the PVR-250 is busy it'll record it off the DVB card?

Mephi

I don't think mythtv need to know it is the same channel. When you tell myth to record a episode of a show it will go find a showing of it on an unused tuner. If you have the same channel from multiple sources myth will just pick one to record one example of the show from. If one source is being used (for liveTV or another recording) myth will automaticaly record from the other source or find a later showing.

Ahh, ok. That's clever...

I was going to reply to this yesterday but was at a loss for how to describe the scheduling. The problem is that it's so flexible that describing it's behaviour is difficult. When you go to schedule a recording of a particular show it will list all occurrances within the current schedule data across all the channels and sources, then you can decide how you want to limit the ones it records. Assigning a tuner is the next worry for the scheduler, given the shows you've requested, the restrictions that you've set, and the tuners available it tries to record the earliest showing of a particular episode that meets the constraints. Finally there is conflict resolution, when two or more potential recordings collide the scheduler ties to decide which one to record using which tuner, and which it can and should defer to a later date. Sometimes it can't work out an alternate solution that satisfies all the requests and then you'll see a conflict flagged for user resolution.

Now, what does this mean for how you schedule things and watch them live? If multiple inputs share the same "video source" (program listings) you can generally use the channel restrictions (record ... on this channel) without missing opportunities. If you've got different Video Sources you may need to open things up and use the (record ... on any channel). Use the card priority settings to pick which tuner should be assigned first. Finally use the "select tuner for live TV to minimize conflicts" in the TV settings so that you watch using the "least used" tuner.

I just set up a DVB card to go along with my PVR250 and am somewhat disappointed with the way mythtv handles this. Yes, the recording tools are powerful, but I have now lost some of that flexability as my more generic recording searches now result in a show being recorded twice.

There are even more limitations with liveTV (see http://mythtvtalk.com/forum/viewtopic.php?p=5002&highlight=&sid=dc60a4e1cfdf23253e21a233b43a8bfc)

It would be nice if there was a "merged" channel list mode. One list containing multiple sources. Duplicate channel numbers indicate the same channel on more than one card.

Hmmmm.... this might be a fun project if I get the time...

Allen

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ASUS AT3N7A-I (Atom 330)
TBS 8922 PCI (DVB-S2)

I know this is an old thread, but I thought I would update it so when others find it they don't get depressed

mythtv can do this it is just a matter of setting the channel data up correctly.
Basically you need to make sure the xmltvid, callsign and name are the same, then everything will work.
These can be set via the web.
It took me a while to work out.
xmtvid needs to match for mythfilldatabase to work.
and I think the callsign and the name are used internally.

There is also a link from the chanid on the channel table to some other table, I manged to delete a channel in error and when I added it again it got a new chanid and now the previous recorded programs don't show the channel they were recorded on.
This is not an issue for me as I have to say record on any channel anyway .

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stinga

as of 17-May-2018
R8.2 - sort of working.
MB: gigabyte GA-P43-ES3G | RAM: 2GB
VGA: PNY Nvidia GT240 1GB
4 x Technisat skystar 2 dvb | 1 x TBS6981 dvb-s2
pata: 1x300Gb | sata: 2x1Tb 2x2Tb
Problems:
TBS6981 Does not work.