commands.txt

Data where all the data is stored about the Movies shows Live TV details are in library.db which is inside /Config/data Load it into the DB Browser for SQLite

Use this command to see all the channels list
SELECT * FROM TypedBaseItems WHERE type LIKE '%LiveTV%';

Use this command to update and verify
UPDATE TypedBaseItems SET Tags = 'free3' WHERE ExternalId LIKE 'm3u_939f%';
SELECT * FROM TypedBaseItems WHERE ExternalId LIKE 'm3u_939f%';