I just up-graded my 2009 Plasma 50" to the Samsung 65" Class - OLED S90D Series - 4K UHD OLED TV I have all the wireless off and no internet connection, HDMI inputs only. I LOVE the picture for everything, even does a good job on my old DVD's. No motion blur on motor sports and NFL or Comcast. Just watched Green Mansions ,1959, on the Comcast DVR and it actually was impressive for being that old.
Everything else sharp as a tack, could not be happier with the set, remote is funky but unnecessary as the set toggles on / off with a on/off of any state of any input signal. Sound is great as long as the audio level is low. Old Denon AVC-3000 for loud content. 1,418.11$ delivered from COSTCO. :)