Good one I've been using the paid app for smart ip tv available on Samsung app store, you can upload the m3u8 iptv links via a webserver and enjoy the channels free.. But even with an 8mbps line the hd channels go to buffering.. Esp the 1080p ones.. Also most of the channel links go dead in a weeks time max once the broadcaster gets it blocked.. Faster for usa channels like amc a&e etc.. Did it for a year and finally got bored.. Instead directly download series and watch it on the tv.. Sony or sammy no problem..
But yes I do use the app for watching mtv hd feeds and vh1.. Right now isn't the time to buy any smart tv since the app ecosystem for these tv's sucks and is heavily regulated by oem's.. Instead but a plain tv and a chromecast and enjoy the show