The Coursera site (and others, such as edX) offers many free (non-credit) courses on a plethora of topics. Reviewing that site sent me on a journey for looking for something more specific to my immediate needs and, at last, I found one offered by Yale that covers the time from the late Roman Empire to 1000AD. Perfect! I plan to check it out very soon. http://oyc.yale.edu/history/hist-210#overview
In the process of looking for this course I also came across a series of podcasts that covers Iran during much of the SCA period, and that one can be located here: https://itunes.apple.com/itunes-u/w3710-history-iran-to-safavid/id412486414?mt=10#ls=1