: Files found on public repositories (like GitHub) often contain links to "Free-to-Air" channels that are legally accessible.

: Used by IPTV players (like VLC or GSE Smart IPTV) to load a list of live TV channels.

While no single "paper" exists for this specific file, it is part of a broader technical and legal landscape often discussed in IPTV research. What is an .m3u file?