The Thomson 49UZ8766 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.
A 4K Ultra HD HD type is in fact the best display resolution across all mid-size TVs that have been on the market for a similar time to the 49UZ8766.
The worst display resolution amongst similar types of television is Full HD.
4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.
It may also be worth considering one of the alternative 4K Ultra HD televisions currently available including the Panasonic TX-48AX630 (£529.00) which has a better Rating.