(Note this video was shot in Fall 2012)
This video looks at nested loops, i.e. a loop inside a loop.
(oops, need to link to example code.)
Computer Programming for the Total Beginner
This video series follows along with my "Introduction to Computational Media" course at itp.nyu.edu. It's in progress. Watch at your own risk. Some videos were shot a year ago, some I'm making right now. I'm not sure if it will all come together and make any sense.