Although it is starting small with only two full courses, the website promises that we can look forward to additional courses in the fullness of time. Right now the offerings are New York City: A Social History, (website, iTunes, YouTube) taught by Daniel Walkowitz and American Literature I: From beginnings to the Civil War (website, iTunes, Youtube) taught by Cyrus Patell.
NYU’s Steinhardt School of Culture, Education, and Human Development has also posted some sample class lectures on its podcast page. Sadly these are not full courses, but just sample lectures, however some are quite good. I recommend Slavery and Abolition – The Culture Wars and The “Creative Revolution” of the 1960s Advertising.