Smart IPTV is available on Samsung, LG and Android TV. Once installed, the app will show the default MAC and channel list. Go to siptv.app/mylist, enter MAC and download M3U/XMLTV.
The free trial lasts 7 days, then a one-time activation is required (€5.49). You can pay by card or PayPal, after which the license is linked to the MAC.
If you are changing your TV, use the Delete Playlist button on the website to release the licenses and download the file again for the new device.