The live broadcast is over, & should be archived soon. Give NASA time to encode it correctly & put it up on their servers.
Then check here:
http://robotics.nasa.gov/
& here:
http://www.usfirst.org/roboticsprogr...nt.aspx?id=418
& here:
http://www.usfirst.org/roboticsprogr...nt.aspx?id=452
It will more than likely be there, as those are the key places it has been archived in the past!