A:Answer We elected to "chance it" and purchased this TV. We have therefore answered our own question with an "affirmative". We weren't looking for screen mirroring . . . rather, we were looking to be able to play a wide variety of videos, mostly home-generated .mp4's, but some camera-raw .mts/mts2 videos . . . from our NAS (Network Attached Storage/Server). This is commonly done using the industry standard DLNA technology for which we had installed, on our NAS, an appropriate DLNA server client. This TV does recognize our NAS server and we have been successful in playing .mp4's both of 1080HD and 2160-4K formats. We haven't yet tried the various other camera-raw formats - - but based on TV documentation, we're expecting those to play as well.
Now, why does Samsung try so hard to avoid reference to DLNA in its documentation?