The device is the factory setting - ie "one connct box" - to record not on the UHD or 4K format. That is the Samsung Series 9 UE55F9090 is to talk to the old art language at best UHD prepared. About the supplied box without a connection regardless of which signal sources, not work you get no UHD_4K image on the screen. For retrofitting a UHD enabled box should calculate 399 MSRP for SEK 2500. ADDENDUM April / 2015: With publication of the new SEK 3500 Box I finally get a SEK 2500 Box very favorable. Now for the first time can determine - the TV does finally what the manufacturer promises half years - the 4K resolution -UHD. Therefore, the point revaluation. But that's about it for good news. I'm still a little suspicious if the manufacturer in clock a new box presents - and so far the data security does not have the approach under control - I say only "language - and Gesture Command" (See Press Feb / 2015), the built-in camera and the Home- networking that only runs on the SAMSUNG Server - I think that's not "smart" because everything only works if you're constantly online - that not even work reliably in every big city. Besides, the voice control is just as bad as when the phone Hotlinen - if you have to shout at the television several times: thus he tries to step cry to throttle "silent" sound then that's pretty stupid. I do not use all the nonsense and therefore also. Each IT Managers Confirm the canon of messages - the television always separate the best from the nets - and updates only when necessary (eg new box). Unfortunately, the new, to SEK 2500 belonging, Smart Remote Control is a bad joke Design. For the European market where it also with larger hands and fingers are people a micro toy - the "Touchpad" of 1x1 cm I do not get time with the little finger operated. The 3D mode I find unconvincing. The sound is perfect for this design. As a user and "beta tester" of an extremely high-priced product, I can no longer wring as this review me. I appreciate and rate the 4k panel which is very good (except the angle restriction) and all I need - but I'm not ready for any technical Players in paying that work better in every 200 computers.