Before I give you the link to the video, there are some things that are worth pointing out. First, the set is obviously big and is packed very well - but notice how many people it takes to unbox it and make sure the stand is securely in place (this set cannot be wall mounted).
Also, after the set is unboxed, the "evolution kit" and the the "one connect" jack-pack modules must be attached to the back of the TV. However, what is great about this is that it allows the TV to be both hardware and software upgradeable by either traditional internet download or switching out the plug-in modules.
As far as some of the other features go, such as the Smart Touch Remote Control, Smart Hub interface, Dual Core processor, and network/streaming features are the same as those that are incorporated into Samsung's higher-end 1080p LED/LCD TVs, including the UN46F8000 I reviewed recently.
I had the opportunity to see the UN85S9 (along with its bigger 95 and 110-inch prototype brothers) on display at the 2013 CES this past January, and it definitely looked impressive, both in terms of physical design and image quality with pre-made demo material. However, check out what CNET had to say after they unboxed a unit, turned it on, and checked it out with a variety of content sources.
NOTE: In the video, the native display resolution of the Samsung UN85S9 is stated as 4096x2160 - it is actually 3840x2160. Although both resolutions are considered 4K, 4096 is used in commercial cinema presentation, while 3840 is the standard for consumer-based 4K Ultra HD TV displays, including the Samsung UN85S9.
Also, for details on other available 4K Ultra HD TVs, including pricing and availability, check out my 4K Ultra HD TV List