Market opportunities are for companies to make more money, not less. If everyone is doing it, it’s because the market, us, told them they could get away with it, and therefore will, because two revenue streams will always be better than one.

This power of the market to vote with dollars is highly overstated. "We" have no say in a hypothetical nine figure, back room wine and dine deal between ad execs and TV execs, when the ad money can afford to be in every back room.

Commercial TVs (and video/signage displays, if you don't actually care about the TV tuner) are out there from most of the major brands including Samsung, but they tend to cost a fair bit more than the equivalent consumer TV.

Sceptre TVs. They sell dumb 4K TVs.

How is the picture quality compared to the top Samsung/Sony 4K panels used in smart tvs?

I have one. Best buy I ever made.

JVC does this for their video projector (which are also pretty damn good). I've seen people complain about that though so not sure how long that'll last.

Almost all projectors in "high end TV" price range and up have 0 "smart" features.

I've been running a BenQ w1070 since 2013 and couldn't be happier