[mythtv-users] How does mythtv determine tuning frequency?

[Ginsu Squirrel]

On 06/05/2011 11:21 AM, Jerry Rubinow wrote:
> On Sat, Jun 4, 2011 at 10:51 AM, Jerry Rubinow <jerrymr at gmail.com 
> <mailto:jerrymr at gmail.com>> wrote:
>
>     On Sat, Jun 4, 2011 at 10:38 AM, Michael T. Dean
>     <mtdean at thirdcontact.com <mailto:mtdean at thirdcontact.com>> wrote:
>
>         On 06/04/2011 10:24 AM, Jerry Rubinow wrote:
>
>         > I expect frequency reassignments by the provider are the
>         only thing this
>         > could be, since I haven't modified my system recently.
>         >
>         > Is it advisable to first clear the existing tables somehow?
>         >   My  channelscan_dtv_multiplex has over 300 entries in it,
>         and my
>         > channelscan_channel table has over 2500.  I should mention
>         my system just
>         > has an HDHR and a HD-PVR.
>
>         MythTV will take care of that for you.  However, I tend to like to
>         always start channel setup from a known location--completely clean
>         setup.  So, for that, I do the video sources portion of
>         http://www.gossamer-threads.com/lists/mythtv/users/264034#264034 .
>
>
>     Thanks Mike, that's what I needed to know.
>
>
> It appears that doing a Deleta All Video Sources followed by a Delete 
> All Capture Cards does not clear out the three channelscan (only two 
> of which perhaps are still used anymore; I think the third, 
> "channelscan", may be leftover in my DB from a long time ago) tables 
> in the DB.  I will clear these manually before adding back the cards 
> and sources.
>
> -Jerry
>
>
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The channelscan tables are really just the history of what you have 
scanned.  They aren't used in tuning.  The real tables are 'channel' and 
'dtv_multiplex'.
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