I ended up finding some projects for samsung tvs. Not sure if they can help clean them up, but they do seem to allow installing your own apps and controlling the tv.

* https://github.com/reisxd/TizenBrew

* https://github.com/Apps2Samsung/Apps2Samsung

* https://github.com/SushyDev/tizen-homebrew

* https://github.com/xchwarze/samsung-tv-ws-api

* https://github.com/hugoh/samsung-tizen-tv-control