About 80 percent of this is a fascinating, if drawn out and dumbed down, examination of the origins of mythical creatures, such as the dragon and the unicorn. But then we get Harry Potter shilling throughout, and the last 10 minutes or so are a straight-up commercial for the Potter franchise. Does everything have to be an ad for something else?

This is an absolutely wonderful show. Thank you Stephen Fry. You did a wonderful job hosting it. It is amazing to hear how these mythical beasts came to be.

Being a 45+ year old male who has seen a million documentaries, PBS specials, and other informative, yet, intriguing films.. I can always appreciate how the content is delivered and engaging.

I have seen a bunch of people fail at keeping me entertained and awake. Documentaries about animals before bed usually help me fall asleep. This did not do this to me. This kept me engaged the whole time..

They way they did that was content delivery and the creative use of graphics, cg, and my favorite- the drone footage. I love to see film makers creatively use drones in capturing their footage...

This had very cool content, awesome and captivating footage, and definitely had a top notch graphics and production team. I definitely recommend and will watch again.