[mythtv-users] Schedules Direct Service for OTA Coverage

[Jay Foster]

On 12/31/2012 09:06 AM, mythtv-users-request at mythtv.org wrote:
> Message: 9
> Date: Mon, 31 Dec 2012 09:47:18 -0500
> From: "Michael T. Dean"<mtdean at thirdcontact.com>
> To: Discussion about MythTV<mythtv-users at mythtv.org>
> Subject: Re: [mythtv-users] Schedules Direct Service for OTA Coverage
> Message-ID:<50E1A576.2090407 at thirdcontact.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 12/31/2012 12:08 AM, R. G. Newbury wrote:
>> >On 12/23/2012 01:08 AM, Joseph Fry wrote:
>>> >>
>>> >>         I have a channel lineup for my area based on Antenna coverage. I
>>> >>         also
>>> >>         have a amplified directional antenna that picks up some
>>> >>         programming that
>>> >>         would normally be outside the normal reception scope of the
>>> >>average
>>> >>         Antenna. Is there a way to extend the channel list of schedules
>>> >>         direct
>>> >>         to include channels that would normally be just outside the
>>> >>         range of the
>>> >>         average user? Or can I setup specific channels to preform EIT
>>> >>         gathering
>>> >>         while populating the other channels using schedules direct?
>>> >>
>>> >>         At one point I considered dropping schedules direct, but the
>>> >>         amount of
>>> >>         Guide data that I obtain is very good! Much better than what the
>>> >>         cable
>>> >>         provider gives their cable boxes. I'm a big fan of getting 2
>>> >>         weeks worth
>>> >>         of guide data!
>>> >>
>>> >>         Maybe I can add more than 1 lineup? Or merge 2 lineups into a
>>> >>master
>>> >>         lineup? One from this area and another from where my directional
>>> >>         antenna
>>> >>         is pointed. So far I haven't had any channel conflicts or
>>> >>         anything and
>>> >>         the reception is great. I added a 24db gain General Electric
>>> >>         drop amp to
>>> >>         the mix and now I get 49 stations OTA. Including 2 different
>>> >>         ABC's from
>>> >>         2 area's.
>>> >>
>>> >>         Anyhow, I didn't know if anyone has ran into any issues like
>>> >>         this and
>>> >>         knew a good solution to fix it. Thanks!
>>> >>
>>> >>     Yes, you can have more than one line up.. Just choose the area you
>>> >>     are receiving the extra channels from.. It's never a good idea to
>>> >>     mix EIT with SD,from what I have read in the past, they don't play
>>> >>     well together..
>>> >>
>>> >>
>>> >>I think the question is, "how do you create a video source containing
>>> >>both lineups".  The input connections page in setup only allows you to
>>> >>link a single source to each tuner, and each source only allows you to
>>> >>select a single lineup.
>> >
>> >The answer is: you don't. Myth presumes that all of the channels in a
>> >source can be tuned by any tuner using that source. If a tuner can
>> >only receive some of the channels, then some of your recordings will
>> >fail, because myth will attempt to use that tuner to record a show on
>> >a channel that that tuner cannot receive. So of course, each source
>> >only allows a single lineup, and each tuner 'sees' only a single
>> >source. It is a necessary restraint, but one which users sometimes do
>> >not wish to grasp.
> Yes. a MythTV Video Source is the list of channels that are tunable (and
> usable) by a particular input and their tuning information.  A Schedules
> Direct lineup is just a list of channels and their tuning information.
> You can have a single SD lineup shared by multiple MythTV Video Sources
> (with each having either different tuning information--i.e. same
> channels, but tuned by one source using HDHR Prime to request the
> channel by number and tuned by another source using HD-PVR's external
> channel change script--or even having a different subset of the channels
> in the lineup--i.e. for ClearQAM vs HD-PVR).  A single Video Source,
> however, can't use multiple SD lineups.
My experience is that that last sentence is untrue.  I use listing data 
from multiple SD lineups with a single MythTV video source with no 
problem.  I always have.

>
> The best approach if you do need to use listings data from multiple
> lineups in a single Video Source is to create a wrapper script for
> mythfilldatabase that uses tv_grab_na_dd --dd-data (do not use --output)
> to get the raw (DataDirect format, not XMLTV format) listings data and
> then use mythfilldatabase --dd-file to load the listings for each
> lineup.  Make sure you don't use mythfilldatabase --file (do not use
> XMLTV format data) or you will break your data and will be missing some
> data.
>
> Mike