* Projectors maybe, but 4k projectors are very expensive. (On the other hand, 1080p projectors look great in my opinion.)
* Most big brands such as LG, Samsung, etc. have "commercial displays" or "digital signage" that are dumb or at least have fewer problematic features. One kind you'll see is marketed for putting in hotel or hospital rooms. Another kind is marketed for displaying at e.g. a bar/restaurant, building lobby, etc.
Projectors require dark rooms; the less dark it is, the less contrast you'll see. I've got a 1080p projector on a wall at 100" and it looks fantastic. But it's in my bedroom and I use it only at night. I imagine for most people's living rooms, especially for daytime viewing, a projector won't work.
I'd like to see a side-by-side comparison. A projector will have problem with direct sunlight on the screen, but so will a TV. I've found projectors okay in a reasonably bright room, depending what's on screen.
A laser short throw projector with an Ambient light reflecting screen can be used in a well lit room. There seems to be a lil boom happening in projection screen tech.
Most consumer projectors are built for home-cinema settings and don't fair well in normal light. Projectors for commercial applications like meetings or trade shows can put out much more light, at much greater cost.
Came here to suggest projectors. I personally prefer my 1080p projector on a 100" fixed screen over a 50" 4k. When looking at projectors pay attention to the warranty period, and think about throw distance/placement.
* extra-large gaming monitors, https://news.ycombinator.com/item?id=29383077
* Sceptre brand TVs (they can be purchased from Walmart) https://news.ycombinator.com/item?id=29383298
* Projectors maybe, but 4k projectors are very expensive. (On the other hand, 1080p projectors look great in my opinion.)
* Most big brands such as LG, Samsung, etc. have "commercial displays" or "digital signage" that are dumb or at least have fewer problematic features. One kind you'll see is marketed for putting in hotel or hospital rooms. Another kind is marketed for displaying at e.g. a bar/restaurant, building lobby, etc.