If Software Freedom Conservancy win their lawsuit against Vizio for GPL violations in their TVs, you will probably be able to install open source Linux distros with KDE Plasma Bigscreen or Kodi on any Vizio TV and soon afterwards lots of other smart TV vendors including Samsung will likely be similar. Allowing the vendor operating system to remain on the device after you purchase it basically means ads/spyware these days.

https://sfconservancy.org/copyleft-compliance/vizio.html