I was looking for a short video about Paul Revere this weekend and followed a link from Surfnetkids to Tales of Curiosity. I didn't find what I wanted however I did find a small collection of videos that might be of interest to you.
I particularly like the video of A Visit from St. Nicholas read aloud with the great illustrations from the book. It's less than 6 minutes and most kids would enjoy this.
A Curious Trip in the Solar System was also good however there are pictures of the gods and some are scantily dressed. Check the video out before you show it to the children. It is certainly not offensive but I am sure the kids will giggle when Mars comes up on the screen!
I'm going to bookmark this site and watch as they add new videos. This looks like a keeper!