To ensure 90% of the population could likely not spot the difference, you would need to place a 50-inch 4K TV 5.9 feet away. To extend this threshold to 100%, it would need to be at least 6.8 feet ...
Compare Audi A6 vs Citroen Aircross. Compare prices, specifications, features, and colors of Audi A6 vs Citroen Aircross ...