Start with:
Bitcoin 101 - What is Bitcoin?
Bitcoin 101 - Understanding Bitcoin (pt. 1 of 3) - A Beginner's Guide (With Help from Wikipedia)
Bitcoin 101 - Understanding Bitcoin (pt. 2 of 3) - A Beginner's Guide (With Help from Wikipedia)
Bitcoin 101 - Understanding Bitcoin (pt. 3 of 3) - A Beginner's Guide (With Help from Wikipedia)
Bitcoin 101 - Why Bitcoin is Not a Ponzi Scheme - Debunking Bitcoin Myths - Part 1
Bitcoin 101 - How To Buy/Get Your First Bitcoins
Bitcoin 101 - Glorious Coinbase - The Best Place to Buy Your First Bitcoins
Bitcoin 101 - Quindecillions & The Amazing Math Of Bitcoin's Private Keys
That's a great series of videos, I hope more beginners see your post.