Need help clearing old tuners

Server Version#: 1.43.1.10611
Player Version#:
Tuner Make/Model: Tunarr
Guide/Lineup name:
Using XMLTV?:
Channel number/Name:

I’m messing with Tunarr, and I have two tuners showing up that I can’t get rid of. I came across this reddit post explaining what to do, but I got lost at #3.

I’m on Unraid, fully up-to-date, and I’m pretty sure it’s the official repo (lscr.io/linuxserver/plex).

Anyway, the dvr is deleted, I found the cache folder, but don’t see anything to do with dvr or tuner, so don’t know what to delete. Step 3 is where I’m lost. Optimize what, and how? What am I deleting or wiping? I have no idea what #3 wants me to do. Step 4 says “clean bundles”, but neither of those words even exist on the page linked, so no idea what that one means also. Step 7, where is the settings.json file? There are a lot of directories in the Plex folder. Step 8 may as well be Greek as I have no idea what it’s saying.

I had the tuner working and playing, I just need to clear it out.

step 2 is obsolete
step 3 “wipe DB” is quite opaque. “optimize DB” is what has always been available under Settings - [server name] - Manage - ‘Troubleshooting’

No idea. It might only apply to a certain type of tuner device.

Some users have reported issues with very large channel lists. Make your first experiments with a small-ish number of channels

Edit the primary Plex database file. Clear out the contents of the table named media_providers_resources.
If you are not experienced with SQL, you may want to use a GUI editor for SQLite databases, like e.g. https://sqlitebrowser.org/

As always with direct database edits, shut down the server beforehand and retain a safety copy of the DB file before making the changes!

I didn’t even know there was a single DB file, I assumed it was thousands of files. No idea where it is.

https://support.plex.tv/articles/repair-a-corrupted-database/

I have no idea how any of that works. I got the db file open, found the line, only thing I could figure out was to delete the whole media_provider_resources line, and I had no libraries or media when I relaunched Plex, so I just restored the backup.