[mythtv-users] Force mythtv to always use one input for a particular channel

[Mary Strimel]

On Thu, Oct 18, 2012 at 9:19 AM, Michael T. Dean
<mtdean at thirdcontact.com> wrote:
> On 10/18/2012 02:36 AM, Karl Dietz wrote:
>>
>> On 18.10.2012 05:56, Tom Hayward wrote:
>>>
>>> On Wed, Oct 17, 2012 at 8:41 PM, Mary Strimel  wrote:
>>>
>>>> Is there a way to make mythtv do this? Should I try to create two
>>>> different channel lineups, one of which omits that channel, the other
>>>> which only has that channel?  Or is there some easier way?
>>>> Thanks in advance,
>>>> Mary
>>>
>>>
>>> I think this will work the way you want: Create two channel lineups,
>>> one for each tuner.
>
>
> OK, just to get terminology straight...
>
> Lineup = a list of channels from a specific provider that you specifiy at
> Schedules Direct, and for which you can download listings data
>
> Video Source = a list of channels and their tuning information in MythTV
>
> What the OP needs is 2 MythTV Video Sources, which can both use the same
> Schedules Direct lineup.
>
>
>>> Make sure the callsigns match so the scheduler
>>> knows they are the same content. On the lineup for Tuner1, increase
>>> the channel priority of the very strong channel (favor strong channel
>>> on Tuner1), but decrease the input priority for Tuner1.
>
>
> No, you shouldn't increase the priority of the channel on the Video Source
> connected to the tuner you want to use that channel.  In so doing, you would
> be saying, "I'd rather record garbage off this channel than record something
> good off any other channel," so you would actually be messing up your other
> recording schedules (even those for shows that never air on this channel).
>
> You would /only/ want to decrease the priority of the channel on the Video
> Source connected to the tuner you don't want to record that channel--which
> says, "I'd rather miss a recording on this channel, but if there's no other
> option, a recording from this channel will work."
>
> (This is exactly why messing with channel and input priorities is almost
> always a bad idea--because few understand the results of doing so.  It all
> comes down to the fact that there is only one priority which affects /what/
> you record.  It's never as simple as affecting where you record.)
>
>
>>> Now the
>>> scheduler will favor Tuner0 for all but the one strong channel.
>>
>>
>> I'm assuming you're on 0.25 or 0.26...
>>
>> I would stay away from the priorities. Just use two video sources, one
>> per antenna. And configure them to just contain the channels that you
>> can receive without error. (it's all digital after all)
>> Look at callsign and channel number so it matches if its the same
>> channel.
>> If you like, configure the input order to be "big antenna first,
>> rabbit ears later". See
>> http://www.mythtv.org/wiki/Release_Notes_-_0.25#Scheduler
>> The scheduler will shuffle stuff around to make room for recordings
>> that can only be recorded on one input either way.
>
>
> This is definitely the easiest way--and likely is more what the OP wants.
> By creating a Video Source without the troublesome channel, you would be
> making it impossible to record off that channel on the input using that
> Video Source.  The other input--which uses the other Video Source, that
> contains the channel--would be able to record off that channel.
>
> Mike
>
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OK, thanks all.  So I think I understand: the simplest way is to edit
the two Video Sources to delete any non-working channels for each
source.  This should solve the problem for LiveTV as well as
recording, right? (although I'll have to manually change inputs to get
to CBS when watching live TV, which is not that big a problem).