@xianc78 there are some formats with the same name but its basically just online streaming.

you get a playlist m3u file representing channels, where each entry is another playlist m3u representing the stream sources. its a thing that is very much alive (but mostly you don't get the m3us anymore, you get "xtream codes") but there are basically no legitimate ones.

italy, being a rather silly country, decided to convict xtream for having too many naughty clients even though all they provided was management portal software.

the legitimate places use a combination of widevine bullshit and custom apps (or white label rented ones), but they are ultimately still just bog standard MPEG-DASH/HLS under the hood like anyone else.