It will soon be two years since BS4K broadcasting started. The number of available devices has exceeded 5 million and we are one step closer to the popularization period. With the recent Covid-19 disaster, rebroadcasts of terrestrial wave and BS have increased, and SD, 2K, 4K, and 8K programs are now available in the mix, making it easier to compare differences in picture quality. At the same time, a breakthrough in the Internet distribution business, including 4K video, is beginning to appear in Japan as well. Let's take a look at the significance of 4K8K content as a material and 4K8K as a platform.