
Netflix has a range of hidden test screens which let you calibrate your TV display, but enabling them really isn't obvious.
But why should you care? Knowing how to adjust your television picture will take your viewing experience to another level. Indeed, by ensuring that the brightness, contrast, colour saturation and sharpness of the display is at an optimal quality, shows you watch on your 4K TV will literally burst from the screen — helping to justify spending a small fortune on one of the best TVs.