The History of English Podcast: Episode 101: The Birth of English Song http://historyofenglishpodcast.com/2017/10/11/episode-101-the-birth-of-english-song/ The best points here for EFL teachers are the Middle English grammar constructions with ‘what’ that mirror Spanish speakers’ errors with What/How. ”What do you say __x__?’ is unlike modern Spanish and Modern English; however it would be correct M.E.!
The History of English Podcast: Episode 108: On the Move http://historyofenglishpodcast.com/2018/02/09/episode-108-on-the-move/ Episode 108 walks us through the history of several English verbs and their cognates. This is one of those superlative episodes that flows from one word family to another in support of the narrative.