Here is a video clip that I posted on Youtube of a Kendo Kata performed by Miyagawa Hanshi 8 dan and Okido Kyoshi 8 Dan. By the way, Okido sensei was the World Kendo Champion at the 7th World Kendo Championships in 1988 (Seoul Korea).
The video quality is not that great, because I did not have a tripod, but you can still see the techniques of Nihon Kendo Kata performed by two World known 8 Dan.
(Caracas, Venezuela – October 11, 2008)