Fun and Educational
The Howard Hughes Medical Institute provides annual Holiday Lectures in early December. This year's lecture series is titled Biodiversity in the Age of Humans
It is available for online viewing here.
The Holiday Lectures main page is here.
"The Holiday Lectures on Science series brings current research into the
science classroom, helping to bridge the gap between textbook curriculum
and exciting new research developments." The researchers selected to present the Holiday Lectures are considered some of the top scientists in the world.