The 49PUS6101 has a maximum display resolution of 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 mid-size TVs that were released in the last year.
Amongst comparable types of TV the worst display resolution is HD Ready.
4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.
It may also be worth considering one of the other 4K Ultra HD TVs currently available including the 49UW761, the 43UF6809, or the 43UH664 (£697.00) all from LG which is cheaper.