Héctor, échale un vistazo a estos link. Todo esto, sí que es verdad.
Ultra HD Blu-ray bets on HDR, digital bridge, 'better than 4K Netflix' quality
http://www.trustedreviews.com/opinio...ou-should-care
There are also ‘scientific’ charts in circulation suggesting that you need to sit extremely close to 4K TVs in order to appreciate the extra resolution at all.
However, while we’d agree that you get the most impact from 4K if you sit close to it, we reject the notion that you get no benefit at all from more distant viewing positions. You still perceive more depth, colours still look more smoothly rendered, and objects within the picture still look more solid and three-dimensional.