somewhat related:
for anyone interested (and nerdy) enough i highly recommend "Understanding the universe" by Alex Filippenko. It's 96 video episodes 30 mins each of classroom style astronomy. it is very well done though and has plenty of examples, graphics etc.
topics discussed can be seen here under "course lecture titles":
http://www.teach12.com/ttcx/coursede....aspx?cid=1810
i just watch it during long camps.