Going off of DYKG, I'd recommend:
The Video Game Years - It's basically a VH1 take on retro gaming and is hosted by several notable Youtubers & industry figures. It's well produced, with each episode lasting around an hour. They cover 1977-1989. If you want to learn about gaming Pre-SMB, I'd recommend this highly. It's TV broadcast quality content.
Jeremy Parish - He's one of the main guys behind Retronauts and one of the leading gaming historians/preservationists. In depth coverage of individual titles, going in order of release. The videos are short (5~12 minutes) but he does a really good job of tracing the history of each genre, potential influences, as well as crediting designers and listing company history:
NES - 1985, 1986, currently on 1987
SNES - 1991, currently on 1992
Virtual Boy - Every Single Release, completed
Gameboy (
EVERY SINGLE RELEASE NA/JP/PAL) - 1989, currently on 1990,
Also N64 & GBC to a lesser extent as well as the history of Metroidvanias & select JP only releases.
The Gaming Historian - Kind of a no brainer. If you can only watch one episode, definitely make it the
Story of Tetris.