DXers Unlimited is Now a Podcast Arnie Coro's (CO2KK) twice weekly show, DXers Unlimited which broadcasts twice a week from Radio Havana Cuba for many years, is now a podcast, and can be found here: http://www.radiohc.cu/en/audios Or, just go to rhc.cu and follow the links.
I have listened to the professors bi-weekly segment on shortwave for years on 6.000 or 6.100 Contact them by email with signal information (date, time, freq) and they send a nice QSL card.