I have heard of TED talks but never watched them myself. Got this link in an email the other day and its TED talks for kids (ok, not for kids but I guess that kids would like)
DS and I watched #5 last night about bees and he is hooked!

Check them out in the link below

http://blog.ted.com/ted-before-bed-one-mothers-nightly-ritual-with-her-son/