Just bought NU7472 and found that it does not play the MPEG4. "The feature is temporary unavailable" and that is it.
Funny enough, we watched all these movies on the 5 year old 22" Samsung (not a smart tv).
Did set up DLNA, send the content from DLNA server to the TV, the same story. Tried to access files through the TV from the DLNA server, aslo same error. Tried external HDD, USB sticks - same message.
So, I assume, that DLNA streaming is only sending the binary content to the TV and the TV itself tries to decode it and fails, so all the advices to use DLNA and other over-the-air solutions are just an alternate way to DELIVER the content to the TV, but the TV itself is refusing to play that content, and that is a problem.
"Get the alternate player from a smart hub" is a nice joke.
True indeed, that buying Series 7 is just a spending 600 euro for just a screen, which will "play" video only when receiving the raw data from BluRay or PC through the HDMI cable.