Thanks for sharing that with us. I've always known there was colour coverage of the World Fair, good to see a camera in action. As for the footage, well if it's out there it will be found. I have recently came across on YouTube a colour kinescope NBC special of the World Fair and it can be viewed in 6 parts:
http://www.youtube.com/watch?v=GA5LVf0p9TM
http://www.youtube.com/watch?v=2UCewXFa0M8
http://www.youtube.com/watch?v=6EGllGYiFa8
http://www.youtube.com/watch?v=CzCA3kODWa4
http://www.youtube.com/watch?v=a-8W9GaGFvI
http://www.youtube.com/watch?v=YA5IkqaQ2gE
It would of been good if the special did some coverage on RCA's "See yourself on color television" section as that would of been great to see, but anyways great to see this footage has surfaced.