In Japan everything related to 8K broadcasting is timed to coincide with the 2020 Summer Olympic Games in Tokyo, and as such broadcaster NHK is planning to kick off hybrid 4K/8K broadcasts beginning December 1st. Assuming you have access to an 8K TV or projector, you'll need a box to actually catch and process the Super Hi-Vision video signal, and fortunately Sharp has one ready to connect to Sharp's 8K TV (LC-70X500), which was launched in 2017.
Provided that the TVs supporting newer standards like HDMI 2.1 aren't out yet, plugging the box in for viewing will require four HDMI cables and a software update for the LC-70X500 Aquos 8K TV.

A software update will be also necessary for the LC-70X500, and will be released by Sharp in November.