Here's a robot video that I found interesting:
Will and Norm trek across the country to visit World Maker Faire in Queens, New York. We find a very different Maker Faire than the one we're familiar with back at home in the Bay Area, with more robots, smarter young makers, and 3D printers everywhere.
There's more from World MakerFaire! Check out the resin-printing stereolithographic Form 1 printer: http://www.youtube.com/watch?v=YzpVtkwkxMc&feature=relmfu
And Norm loved this motion tracking sentry gun: http://www.youtube.com/watch?v=iA7GYjUOp1E&feature=relmfu