I'm curious to know. Iptv providers who have url such as www.domain.tld/get.php?username=reddit&password=reddit&type=m3u
It downloads a m3u file which I can load locally, but if I no longer pay on the service, I'd still have the m3u stream? What would make the m3u file no longer work?
Do you see the part of that URL that asks for a username and password? thats the exact way it would not work. You have to authenticate using those credentials, if your subscription ends, the credentials will come back as invalid, and not let you load the streams you are looking for