[mythtv-users] USA OTA FCC frequency rescan?

Jay Harbeston jharbestonus at gmail.com
Mon Aug 12 14:22:08 UTC 2019

> On Aug 12, 2019, at 9:13 AM, James Abernathy <jfabernathy at gmail.com> wrote:
> So my local OTA channels have started the warning about September 6 and doing a rescan to continue receiving their channels.
> My backend is mythtv v30 with 2 tuner systems.  One is a PCIe card, the HAUPPAUGE WinTV-quadHD PCI Express TV Tuner Card 1609. The other is a SiliconDust HDHomerun Quatro.
> I currently get my EPG from SchedulesDirect via tv_grab_zz_sdjson_sqlite. The Input Connections for both sets of tuners, i.e. 8-tuners, use the same Video Source which is the one setup to use tv_grab_zz_sdjson_sqlite.
> Can someone point me to instructions or discussion on what to do in my case? I think the rescan is done externally to mythtv-setup using steps defined at https://www.mythtv.org/wiki/XMLTV for initial setup, but I remember that if not careful you can loose Recording rules and previously recorded metadata is some cases.
> Has anyone worked out a way to do the rescan without messing things up??

I will be doing the following steps:

1. mythconverg_backup.pl —backup_xmltvids  — # Sometime between now and when channels  change. 
    The created file contains two different formats, the first being a series of update statements using only callsign:  e.g.
    UPDATE channel SET xmltvid = 'I17155.json.schedulesdirect.org' WHERE callsign = 'Channel 4’;

The remainder are commented out. 

After the change has been made, do the following:

2. Stop mythbackend 
3. Start mythtv setup
3.1:  Clear all the OTA channels currently setup.
3.2. Rescan all OTA channels 
3.3  Exit mythtv setup
4.  Run the sql update statements generated above.
5.  Start mythbackend


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