NHK will present highly realistic broadcasts of the 2020 Olympic Games in Tokyo via 8K Super Hi-Vision, the world's most sophisticated broadcasting system. Here, we describe our preparations for 8K broadcasting, particularly for the test broadcasting via satellite due to start in 2016. In particular, we describe our activities related to standardization and development of program production equipment, play-out, and a distribution system for the 8K broadcasting. Regarding the production and distribution systems, we present the results of experimental satellite broadcasting performed this year. We also discuss the current status of the high dynamic range (HDR) function for the 8K system, the multi-format production workflow, and remaining issues.