This is really Youtube at its best.

Deep dive into a niche topic, expert led, compelling storytelling, and professional production.

Not sure how/if something this could have been created / shared 20+ years ago.

If you are an engineer and you haven't watched this video please do yourself a favor and do so. I watch very little TV or YouTube, but I ended up taking off the afternoon after this video unexpectedly drew me in. It was impossible to not finish it - so if you do start watching it make sure you have two hours to spare. This is easily the best and most enjoyable thing that I've watched in the last several years!