What video of aoe 3 is the best for someone that never played aoe or RTS in general?

So I‘d like to introduce a friend to aoe 3. All his life he only played X-Box, and almost exclusively ego-shooters and World of Tanks. He‘s planning to get himself a gaming PC now and showed himself interested after I explained him aoe 3 works. At first he thought it‘s something like Clash of Clans.

Can anybody recommend me a good video to introduce him to the game without overwhelming him? I‘m not talking about a tutorial but an overview.