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@@ -0,0 +1,46 @@
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+# Background
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+
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+Designed for use with New Zealand FreeView.
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+
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+Assumes you have mythtv set up as per the [setup guide](https://www.mythtv.org/wiki/Setup_General)
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+
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+After setting your Channel Frequency Table to New Zealand, you may need to edit the transports to match the data for your region.
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+
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+See [tv headend](https://github.com/PiratJones/tvheadend/tree/master/data/dvb-scan/dvb-t) git repo for the frequencies for your region.
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+
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+NOTE: I'm not actually sure if this is necessary, but the channel scan I did with mythtv defaults resulted in some channels missing. After deleting all channels, manually adding the transports in [Waikato](https://github.com/PiratJones/tvheadend/blob/master/data/dvb-scan/dvb-t/nz-Waikato), and running another scan, then all channels were found. However, I noticed that the resulting 5 transports were different to what I configured manually (mythtv will find and delete duplicates). It could just be that the first scan missed some channels for some reason.
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+
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+# Usage
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+
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+First, check the patches (included in the bash script as here-files) are appropriate for your use case.
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+
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+Then run:
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+```
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+./epg-grab-mjh.sh
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+```
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+
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+Add to your daily crontab.
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+
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+Thanks [Matt Huisman](https://www.matthuisman.nz).
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+
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+See here [https://www.matthuisman.nz/2017/07/new-updated-nz-iptv-files.html](https://www.matthuisman.nz/2017/07/new-updated-nz-iptv-files.html)
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+
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+# Help
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+
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+To generate the patches, just download the epg.xml from Matt Huisman's site, and
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+
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+1. Copy the original xml to epg-modified.xml
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+
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+2. Make sure the channel names in epg-modified.xml match the output from mythtv db: ``sudo mysql -u root -p mythconverg -e "SELECT channum,chanid,icon,name,xmltvid,sourceid FROM channel WHERE visible ORDER BY channum+0;"
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+
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+3. Generate the diff between the original and modified xml, and save as rename.patch: ``diff -u epg.xml epg-modified.xml > rename.patch``
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+
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+4. Apply the rename.patch to the original xml
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+
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+5. Remove any channels in epg-modified.xml that mythtv hasn't found, so long as you are sure you can't get from your location
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+
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+6. Generate the diff between the the (patched) original xml and the modified xml, and save as remove.patch: ``diff -u epg.xml epg-modified.xml > remove.patch``
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+
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+7. Replace the here-files in the bash script with your patch files
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+
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+I split the patches up in the case that some users neeed renames but not removals.
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Daniel Sheffield