The best and correct option for such TVs would be an IPTV set-top box on Android!!! Everything else is a workaround!!!
Player OTT-play FOSS TVs LG , Samsung and others not on Android
https://ottp.eu.org/www/install/ (player installation, three methods)
Set up the player according to the instructions 5.5 Setting up ott-play player..
Media player Kodi setup instructions 5.7 Setting up Kodi media player
Player Smart IPTV (SIPTV)
Please note, the player is paid, but you can test player for free for 7 days!
We install the player on the TV
LG
Samsung
Load the playlist into the player via https://siptv.app/mylist/index.html
a) in the MAC field enter the MAC address of your TV;
b) the "snake" to the right of the MAC field changes the method of loading the playlist, either you download the playlist and specify (select) the path to it, or you specify the link (URL) to the playlist and the device itself pulls the required playlist from our resource; you can view the link to the playlist in the personal account Playlists->Links select the SmartIPTV playlist and press the Copy button, the link to the playlist for this player looks like http://tv.team/pl/13/*******/playlist.m3u8 (instead of asterisks is your unique access code (token)); We recommend the second method of loading the playlist as if there are changes in the channel list you will not need to download the playlist again;
c) in the EPG field, enter the link http://epg.team/tvteam.xml
Reload the player and watch TV.
You do not need to specify the EPG country; if you want to specify, you can select ExUSSR for Russia.

Player ott-play by Alex (not for Russia and Belarus), WARNING!!! ott-play by Alex player blocks Russian channels and servers, if you need these channels, use the OTT-play FOSS player (above).
LG Samsung Toshiba, Panasonic, Sony, Philips, Hisense, Skyworth, TCL, Sharp, Haier...
Set up the player according to the instructions 5.5 Setting up the ott-play player.
Player M3U IPTV (only for Samsung Tizen and LG WebOS)
https://m3u-ip.tv/
To set up the M3U IPTV player, use the playlist for Televizo.
It seems that the archive on the M3U IPTV player only works on the Premium version of the player, costing 1400 rubles.
NOTE! due to the update of the donor application RedBull on many Samsung TVs, the player ott-play (FOSS and DRM) stopped loading, installed in this way. For this reason, it is better to install these players on Samsung TVs through the widget (you need a computer/laptop). Download the archive of any player to your computer, unpack, start the application (file with the extension exe) and follow the instructions that appear on the screen:
https://forum.tv.team/files/SAMSUNG.TV/FOSSInstallTizen_byFoxTV.zip
https://forum.tv.team/files/DRM-play/DrmPlayInstallTizen.zip
Additions and explanations to the instructions:
1) for more information on how to enter the developer menu, you can look on the internet by using the search;
2) the computer and TV must be on the same local network, i.e. connected to the internet in the same way - both by cable or both Wi-Fi;
3) press the buttons in the following order 1-OK-2-OK-3-OK-4-OK-5-OK, i.e. after selecting the digital button you need to press OK, and the buttons must be pressed quickly, without pauses.
