Mmmm...Samsung with a bad panel; that wouldn't be the first time.
By the way, I own a Samsung plasma TV since 2011, and just recently I noticed that the black bar on top is burned in into a full screen picture.
I watched (revisited)
In the Heart of the Sea in 3D, and right from the beginning, under water, there she was a faint line @ top from previous widescreen Blu-rays I watched.
Video
Codec: MPEG-4 MVC (12.00 Mbps)
Resolution: 1080p
Aspect ratio: 1.78:1
Original aspect ratio: 1.85:1
I only use my TV for strictly Blu-rays @ 99.88%; no cable no nothing else except couple DVDs per year, @ most.
So after five years plasma do get image retention, the black bars for sure, and now they are constant.
It's time to upgrade, with LG OLED 4K or Samsung LED 4K? ...Which one will last five years before I noticed dead pixels, colors fading, black levels becoming grey, image retention, limited angle, poor HDR, yellows losing their brightness, greens becoming lime, reds darkening and looking like bloody wine, ....?
There are no TVs perfect, and expect nothing less tomorrow and the day after tomorrow. Everything become obsolete faster and quicker since we hit the year 2000 and going forward.
I find life more relaxing living with all its imperfections than trying to get the ultimate best. Use the toys for their intended purpose in the moment...picture and sound.
I have few dead pixels in 3D, but I learned to live with it, now I'll learn to live with image retention, or just buy another TV with other anomalies that with time will develop and that I will discover.
Lol, OLED was almost ruling the world for a second, then some folks had a vision, and nobody is talking about KUROS (Pioneer) 4K TVs.
...And no Kuro 3D either.
I have a question for the expert videophiles here: What is more immersing, 4K or 3D, well done?