Pixels in 4k video.
When watching a 4k video on my 5k Retina iMac I see about 3 pixels that stand out. Other than when i'm watching 4k from this website, I don't see any problems or no bad pixels. Could this be the website or should I be concerned?
iMac with Retina 5K display, OS X Yosemite (10.10.3)