IPTV and GSE Smart IPTV
These applications have the advantage of being available on the Google Play Store. Therefore, they are compatible with Sony, TCL, Hisense TVs equipped with Android TV.
GSE Smart IPTV web site.
Smart IPTV and OTTPlayer
Both are available in the Smart Hub app store included in Samsung TVs.
See: How to watch IPTV on a Samsung J-series Smart TV
Smart IPTV and SS IPTV
These applications allow you to play IPTV lists from LG televisions with webOS system. They can be downloaded directly from the LG Content Store application store.
See: How to install Smart IPTV on LG Smart TV
SS IPTV (Linux version)
It works on many Linux-based smart TV models, for example, Sony Bravia, AOC, among others. If you cannot find the application on the TV interface, you can download its file and install it manually.
Here the link to its official page.
https://ss-iptv.com/en/