Its done through the smart iptv app available on theses sets. (You have to pay a one off £4.00 fee to smart iptv to allow list hosting)
The iptv web site has a convertor utility for enigma2 folder from the E2 sat box and it converts it to an m3u list You then upload it for the mac address of the smart tv ,that then lets you watch whatever you get on your sat box on your smart tv.. If you have a twin tuner box its even better as you can then watch separate channels on both box and smart tv. I also find using homeplugs gives a better outcome