Every year those crazy engineers at Japan's NHK show off their advances in 8K technology, just to drive all of us nuts who are still struggling with 4K. So this year they showed off 8K wireless transmission, and Fujinon showed off an 8K lens (it was massive with very little focal range). NHK is dreaming of giant screens in every home showing 8K, and this was their demo of it.
As a token effort to get Canadians aboard the 8K train, NHK showed off some 8K footage of hockey. It wasn't particularly a good hockey game (in fact it was pretty terrible), but this Canadian appreciated the effort.
