Our own podcast is out there and has quite a few episodes.

And if you're looking for good audiobook/lectures, several of the books on our booklist have audio recordings out there of them. In the latter category, a lecture series I always recommend to anyone is Ken Hammond's "From Yao to Mao". A very good digestible overview of Chinese history in audio form.

Also see http://backstoryradio.org! Where real historians talk real history and their musings are informed. (cough, cough-unlike Dan Carlin who is a sensationalist dilettante-cough cough)