This can be solved by using any number of 3rd-party streaming devices: Apple TV, Google TV Streamer, NVIDIA Shield, ...
I've never experienced an TV OS that was reliably better than one of the above, though a Roku-OS TV came close.
I tried to look for a 'dumb' tv for a long time to get to a setup like this. The ultimate setup would be 1) a totally dumb and stupid tv + 2) a streaming box like Apple TV or whatever. I just want the audio/visual aspect of the screen, nothing else.
Keep in mind: "Is your android TV streaming box part of a botnet?"
True, but when you want to change any of the TV settings you have to deal with the sluggish UI. I have memorized the key presses to toggle between two different brightness presets, including the amount of time I have to pause between each keypress. If I press the buttons without waiting sufficiently long, it goes sideways.