If my memory serves me, I believe he created Geoff the Robot on the Craig Ferguson Show.
It mentions that in the article. When I first read that I thought “No way - that was a guy in a horse suit!” Then of course I remembered the robot.
On the last show they revealed who was inside the horse. (3 minute clip of the last show):
https://www.youtube.com/watch?v=XaEQRYeAF9w
Now I'm reliving old episodes of Iron Chef Japan.