Check out Coding Secrets. There are probably a number of videos on this channel that you might enjoy. Some of it is newer and in the 3D era but it goes back into the 8 + 16 bit days as well.

https://www.youtube.com/c/codingsecrets/videos

And his original Game Hut channel. https://www.youtube.com/channel/UCfVFSjHQ57zyxajhhRc7i0g

And of course, even though this is Playstation the extended interview with Andy Gavin is fascinating. https://www.youtube.com/watch?v=pSHj5UKSylk