Ben Paylor has made some awesome animated stem cell videos for educational outreach via his project called StemCellShorts supported in part by the Stem Cell Network.
These videos are narrated by true scholars of the field and are a very effective means for teaching about stem cells. I really enjoyed them and highly recommend them to you
The three in this post are out in the public domain now.
Stayed tuned here as there will be more to come in the way of StemCellShorts videos in 2014 that should be just as great!