This is one of the BBC public broadcasting programmes which is released as a podcast and hosted by one of the premier presenters in the UK - Melvyn Bragg. Perhaps obviously, it is a government/publicly funded programme and a completely professional product.
Melvyn (an historical author himself) holds a tight leash at times to corral his guests (invariably three academic historians) over a 50 minute time frame to discuss the chosen topics.
The subject matter is always historical and can dive deep on literary and philosophical subjects which are not always to my tastes. The great thing about podcast menus is you can pick and choose - unlike radio where you either listen, change channel or switch off.
It's obviously been going for many years (since 1998) delivering 808 episodes to air and continues to deliver highest quality historical discussions with a tendency toward the cerebral.