Right now 4K and HDR people have not been completely rosy and in the meantime, LG has introduced the world's first 8K TV with an 88-inch OLED display. The company will launch it in CES 2018. Before that, the TV with the largest OLED display was 77 inches earlier.
LG is constantly moving from QLED display to OLED display. LG's screen resolution of this TV is 7680 x 4320 pixels. Let's say that the Olympics in Tokyo in 2020 will be broadcast in 8K resolution.
Now talk about the price of 8 TVs, the 85-inch 8-inch TV currently costs about £ 106,90 i.e. about $12860. However LG has not yet disclosed its value. Price information will be in CEC 2018.