So I did a lot of research on this tv back in 2013. I also paid a THX expert (the lovely Canary Jules) to calibrate my television after 200 hours of usage.
The TV really is amazing regarding picture quality, especially in Blu-Ray quality. 3D Blu-Ray is pretty mesmerising after calibration.
The picture quality out of the box was pretty good already for regular Sky TV and Blu-Rays, but I found it lacking in 3D. Nothing like a bit of calibration to get that sorted, but full disclosure, I'm really picky with my image quality, I'm also like this with computer games. So you might have no idea what I might be on about, and that's absolutely fine.
I connected my PC to the tv as a second monitor via HDMI cable and everything went well, nothing bad to report, no flickering, nothing.
What is a huge let down in this tv are two things mainly:
1) No support for a lot of the apps, like Amazon's Prime video. It frustrates me that as someone who paid for Prime can't access their free content because there's no app for the flagship tv of 2013 because Panasonic couldn't care less and only started to support later models.
2) The Media server for my Serviio/Plex library (I've tried both) is incredibly patchy and flawed. Lots of films don't support pause, fast forward, or rewind, and will restart the film if you try. The list where you browse the films can sometimes take ages to load. I already switched my PC's SSD, the HDD, got a Synology NAS for the media library, the PC motherboard, the Windows version, the router, the Ethernet cable, everything that could possibly explain the terrible Media server's performance, and I'm now sure that it's the wretched television's fault.
For these two reasons alone I will never buy a Panasonic TV ever again. I really doubt I can trust them again. Yes, I'm a user who wanted it all, and Panasonic only pretended to give me all. When I realised I had been scammed, it was too late. At least I still have a good "dumb" TV! But I'm pretty confident I wouldn't find these two issues with Samsung's plasma.
Other minor flaws include horizontal panning, which is a known minor issue of this PAL model of an otherwise perfect panel; the wi-fi is sketchy, but this might be an issue with my set;
...And not having a button on the remote to switch between modes, like Professional 1 for daylight usage and Professional 2 for night time usage. Pressing Menu, then scrolling to the Picture, then Picture Mode, then picking from the list which mode you want your TV to be in is a hassle, and with time both my wife and I ended up forgetting to put it back into the night time mode, leaving the TV with much higher brightness than it should be for hours, sometimes days, until we notice that we really shouldn't be watching tv with this much brightness.
Panasonic TX-P50VT65B User Review
Amazing "dumb" tv, the "smart" part is lackingReview of Panasonic TX-P50VT65B Plasma TV by Zealot, Jul 22, 2016.This item was purchased for £1700 from John Lewis in 2013. The reviewer still owns this product.
Contrast/Dynamic Range/Black Level10
2D Picture Quality9
3D Picture Quality10
Picture Quality Out-Of-The-Box8
Picture Quality Calibrated10
Ease Of Use8
Value for Money8