Plug it in and watch it xD

I got this one in May right after it came out. Love this tv!

http://www.bestbuy.com/site/samsung-55-class-54-6-diag--led-2160p-smart-4k-ultra-hd-tv-black/5147600.p?skuId=5147600&cmp=RMX

I belive you're referring to the x800D, in which case nice :D

The one thing I'm really unhappy about with my TV is that I can't install Viaplay or HBO on it since Samsung apparently have some sort of exclusive deal with them for smart-tv apps. That said; Android TV works like a charm, I heard a lot of complaints about it before I bought my TV, went down to test it at a store and it seemed fine, got my own set and Android TV is actually great and nowhere near being slow, perhaps those who make complaints simply bought cheap TV's with poor processing powers.

Forza Horizon 3, NBA 2k17, Gears of War 4 have HDR.

BF1 does as well, but that's a better candidate for Pro.

ps4 already have HDR now, about 4k content Netflix have very little and it isn't exactly stunning, so YT would be your best bet

People buy the biggest screen they can for as cheap as they can and them complain about performance, it's not like human being got smarter since last year =]

Heres a list of all 4k Blu Rays http://www.blu-ray.com/movies/search.php?action=search&videoresolutionid=2683&sortby=releasetimestamp

Yeah, most consumers are not very informed on their purchases at all. I always spend a lot of time considering and reading up on and testing things I buy, especially things that are expensive. Buying TV's, phones and even consoles without doing any research is not a terribly smart thing to do.

I try to read all I can and keep a budget, unfortunately on 4K TV in Brazil there isn't much option so the research is a little futile (but it avoided me buying LG and Samsung TVs that were 20-50% cheaper than the Sony I bougth, because all bellow the one I got was fairly crap and the Samsung and Sony that were better were also 50% more expensive, so not that hard of a choice)