There should be webcasts- I know the majority of us can't live without at least 2 webcasts a weekend
If there are any webcasts, they should be here
http://robotics.nasa.gov/events/webcasts.htm
last year the webcasted regionals were:
Silicon Valley Regional
San Jose, CA
Lone Star Regional
Houston , TX
Palmetto Regional
Columbia, SC
Sacramento Regional
Sacramento, CA
Peachtree Regional
Duluth , GA
Central Florida Regional
Orlando, FL
NASA/VCU Regional
Richmond, VA
Pacific Northwest Regional
Portland, Oregon