I work in the refurb department of an ewaste recycling company. I had a TV on a roller stand come in some months ago. When I turned it on, I realized that it wasn't any ordinary consumer-grade TV, but a commercial grade one. It lacked any sort of smart functionality, had no apps, and reported DCI 4K resolution (4096x2160) when connected to a PC. I found a remote that worked with it (even though it was a 'smart' TV remote). I listed it as a "dumb TV" for $200 and it took a while to sell.