The other day I saw this project to flash your TV with custom software: https://www.tiktok.com/@itstundealao/video/77013919041931215...

Here are the repos mentioned: https://github.com/Gathin23/cleanyourtv

https://github.com/simbasjungles/free-my-tv

The video is pretty cool. The guy flashes his tv with a custom firmware with a look/feel and elements he chose, plus a feature he created to leave handwritten notes for his girlfriend on the home screen of the TV, remotely from his laptop