Noclip is a YouTube channel that focused on crowdfunded video game documentaries and they did an excellent video on Bethesda Games Studios that you need to watch. It covers the history of the studio from the first Elder Scrolls game all the way through Fallout 4 and then teases the upcoming doc on Fallout 76.
Buckle up for an hour and a half of Bethesda documentary goodness that includes a discussion with the writer of the now infamous Skyrim "arrow to the knee" meme.

"Embark on a quest through the history of The Elder Scrolls and Fallout. With insight into the development of everything from Arena to Fallout 4, Noclip takes you on a journey through the creative process of one of the most prolific RPG designers in gaming history."