The DLNA Certification and Logo Program is designed to ensure that DLNA Certified products have implemented the features necessary to comply with the DLNA Guidelines, and that they will in fact interoperate with other similar devices when connected to those devices in a consumer's home environment. The DLNA Certification and Logo Program enables companies to certify their products through a well-defined and rigorous process. Y Samsung UE55KU6400U, 55", 3840 x 2160 pixels, LED, Smart TV, Wi-Fi, Silver Samsung UE55KU6400U. Display diagonal: 55", Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Display technology: LED, Screen shape: Flat. Smart TV. Motion interpolation technology: PQI (Picture Quality Index) 1500, Native aspect ratio: 16:9. Digital signal format system: DVB-C, DVB-T2. Wi-Fi, Ethernet LAN. Product color: Silver https://www.eurogamer.net/articles/digitalfoundry-2016-samsung-ku6400-4k-tv-review Well, in this case the key compromise comes with how HDR is handled. While the KU6400 supports playback of high dynamic range content, it's also clear that it lacks the necessary features to display it as intended. This makes the KU6400 a poor choice for... Overall, this is a great 4K screen for the money, doubling up as a solid, outsize PC monitor and as a UHD TV geared towards gaming. The combination of deep blacks, accurate colours, and low input lag delivers an excellent experience overall where playing...