A podcast I want to listen to

It would have a linguist as a host, and then for every episode, there would be a guest with a different dialect or accent. They would talk about what makes that dialect/accent distinctive, what features it has, and what its history is. I would listen to this either about English dialects/accents, or Swedish ones.

Sadly, such a podcast does not seem to exist, or if it does, I can't find it!