The highest display resolution of the Samsung UN65HU8550 is 4K Ultra HD. That's over four times the display resolution of the most frequently found HD type of Full HD. 4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.
This TV's display resolution (4K Ultra HD) is actually the best display resolution amongst all large TVs that have been around for more than two years.
The worst display resolution amongst similar types of TV is Full HD.
4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.