Guys, I must admit, I am getting a kick out of this thread. I was asked some time ago to start a thread as a 4k owner. Back then, I had purchased a Sony XBR65900A. In that thread I reported my impressions, which were quite positive. Since I never owned a plasma, I think my impressions were more or less blown off.
Since that time, I was lucky enough to win a Sony XBR55850A. Now, as I admit never owning a plasma. I have seen quite a few; both in store, and at the homes of friends.
Both of my 4K sets blow the socks of any television I have ever seen. It's not even close ! With the exception of LG's OLED. The OLED was playing a demo loop, which we all know is a come on. We never see material with the bit rate that demos display. In the case of the 4K Sony I saw demo loops too. Which I always have reservations about.
However, at the time Sony was the only one with actual 4K content (4K Media Player) so I took a shot. What I have experienced since is an incredible picture, with deep black levels and vibrant colors. Zero fast motion blur, zero light bleed. Just a jaw dropping picture. That goes for 4K content as well as 1080p and 1080i. Everyone that walks in my house is amazed at the PQ of both sets.
I can't wait for Directv to launch the next bird and get this puppy up and running. Also, I will not hesitate to pick up Vizio P series, when they become available. ( rumor of Sept)