Absolutely no support for “Ambient Mode” from Samsung. I spent a lot of $ for a QLED tv with “Ambient Mode” that’s supposed to match your wall color to eliminate the big black screen or allow beautiful images as art on the wall. DOESN’T WORK!!! The “Smart Things” app doesn’t work either! That’s the interface to tv for Ambient Mode. I called Samsung 5 times, talked to several pleasant support people, none could help and said I needed to talk to the Smart Things app experts. They would all “transfer” me to those experts but each time there was no one there, I waited 45-60 minutes each time until I finally gave up. Smart Things app doesn’t work, QLED Ambient Mode doesn’t work and there’s no tech support. Don’t waste your money on Samsung QLED tvs.