Thank you guys.
davep : I tried: I added a new network in "Configuration > DVB Inputs > Networks > Add > IPTV Network", then I added a new mux in "Configuration > DVB Inputs > Muxes > Add > (my new network)", I pasted in the M3U address in the "URL" field, pressed "Create", and took a look at the list of muxes, but even after refreshing the list, the new mux doesn't show up in the list.
Kiril St. : As I reported above, there is no URL field in this window, here:
