Si quieres invertir dinero en una TV hazlo en una VT60 o ZT60 mientras haya. No hay TV ni 4K ni 18K hoy en dia que les alcancen y ay veremos hassi lo hace algun LCD antes de que lleguen los OLED

Speaking of picture quality, none of the LED LCDs I've tested in the last few years, 4K or otherwise, can beat the best plasmas, let alone OLED . But plasma's future is questionable at best, and OLED TVs will likely remain mega expensive for the next few years.
With video on a TV, the difference between 4K/ UHD and 1080p/HD resolution is really hard to see. Many of the words in those reviews were written on a laptop in my lab at a theatrically close seating distance, comparing a 65-inch 1080p and a 65-inch 4K TV. Despite all the extra pixels I knew made up the 4K TV's screen, most of the time I didn't see any difference at all, especially with HD TV shows and Blu-rays. The differences in detail I did see were limited to the very best 4K demo material. Larger TVs or closer seating distances make that difference more visible, as do computer graphics, animation, and games, but even then it's not drastic.
Four 4K TV facts you must know - CNET

Los "indignados del 4K" por David Katzmaier




Las tv 4K impresionan a cortas distancias con sus demos preparadas