Podcasting the Empire.
One of the most popular education podcasts on the 'net involves the great Emperors of Byzantium. No, seriously. [H/t, Mike Aqualina.] As in listened to by 140,000 people per 'cast.
The podcast can be found here or here.
I found Mike's post after getting, on the same day, recommendations for it from both Maureen and commenter and fellow Byzantinophile Steve (via e-mail). Now there's a hint for you.