A:AnswerThe Skype app is no longer available for Samsung TV's. There are a couple of cameras available (VG-STC4000 or VG-STC5000), but it they wouldn't do you much good without an app.
A:AnswerWe have organized all of the available apps on our website, and they can be browsed at this link:
http://www.samsung.com/us/appstore/browse
Thanks for your interest in Samsung products.
--Mr. S
A:AnswerThe TV is HDR Compatible.
http://www.bestbuy.com/site/samsung-85-class-84-5-diag--led-2160p-smart-3d-4k-ultra-hd-tv-with-high-dynamic-range-silver/8831036.p?id=1219698441024&skuId=8831036&cmp=RMX
Listed under "Display"
A:AnswerFrom their website it t says this:
Design
Type
4K UHD TV with Full Array Backlighting
And Samsung Support answer the question for backlighting not feature please.