: The "MAC" in the title often refers to a hardware-specific identifier required to authenticate with a "Stalker Portal" or similar IPTV server. Where to Find Similar Lists
: Usually distributed as .txt or .m3u files, they contain #EXTM3U and #EXTINF tags followed by URLs that streaming players (like VLC or dedicated IPTV apps) use to load the broadcast.
MBC and BeIN Sports Channel List | PDF | Broadcasting - Scribd