Yeah - no set up here at all, the DLNA app was built in and all I had to do was enable media sharing on our 2 laptops and the netbook.
The TV has a Hexa Engine Dual Core Processor or whatver it's called so it's pretty snappy.
I compared the quality of some 720p and 1080p movies i had on my netbook: connected via HDMI and streamed via DLNA on the Panny:
I must say, the difference in PQ in ONE of the movies was miniscule, and the rest was equal in PQ, and the difference, if any, was/is not worth the HDMI/mouse hassle. The Panny DLNA started the movies VERY quickly, and i am yet to see a single hiccup / interruption, and have watched at least 3-4 movies and more than 20 TV episodes since I got the TV ( a few weeks ago)
(FYI both the netbook and Panny are hardwired to the router, IDK if it helps stability)
NOTE: apologies to OP for being OT. But compared with how much one has to mess with PLEX and moving / ripping files (at least so it seemed to ME), the option of a good smart TV DLNA can be helpful to some, as there's zero fiddling with your files; they can remain wherever they are, AS they are.