I think listening to a podcast is a good way to learn about a topic without diving too deeply into the technical aspects.
Recently I wanted to learn more about web accessibility. I've mostly been listening to podcasts in French because the legal context is important in accessibility issues.
You can find an incredible list of podcasts in English on the subject at this address
So here is a list of podcasts about accessibility, some are old, some not only about web and some have text transcription :
I am curious to discover others, feel free to share.
I will keep this list updated.