The first is toy reviewer Pixel Dan's informative and entertaining video on the old Castle Grayskull from Masters of the Universe. It just shows what a monumental play set this was, and it should be obvious why many enthusiasts regard this as quite possibly the best play set ever made for a toy line.
The other video is Pixel Dan and Daniel Benedict (winner of this year's Create a Character contest) just goofing off. It's meant to be a encouragement to those sitting on the fence with the new Masters of the Universe Classics Castle Grayskull. And at this point, I too am excited over the possibility that it gets made, so head on over to mattycollector and make a pre-order.
Enjoy your weekend, people!