Tell the people watching about how cool it was for you for the first 20 seconds with a voiceover with FIRST video of the bot in action. Then tell the people watching about how they can get involved.
Wet their appetite then feed it. Then the 9 other interviews would be very similar format only with differernt footage and stuff about what first meant to them. But always end with that "to find out more, go to usfirst.org" tag line. Eventually enough wow factor will make people actually visit the site, FIRST can take it form there
Good luck with the interviews!