Today I bought a 55 inch tv in Carrefour. I was planning to buy HD Heran TV, but the staff pushed me to buy "Proton" UHD PLD-556KH2. They told the Proton was the only model which was purely made in Taiwan, the componetns and the assembling. In the end I thought ok I would take this one.
And now I am a bit worried about the decision since playing switch on UHD could negatively affect the graphics, but being in 2017, it is already difficult to find 2017 model with HD version, even though there is almost no contents for UHD. I might have made a mistake, or maybe not.
By the way, the only real UHD contents I am aware of is the upcoming Planet Earth 2 which must be fantastic, but probably it is not worth the added cost.