Smart-STB is useless - Smart IPTV app is much more stable - and a LOT cheaper! Trust me, I have both.
Download the app from the Samsung apps page on your TV under the "video" heading.
You can check our site https://honestiptv.com/ordernow/
its best for 2019
We recommend the Smart-STB app with iptvfuture.com being an excellent reseller for IPTV channels. Compatible with Samsung & LG Smart TVs. Free trials available