Can you convert Latex to Word (or ODT, etc.), perhaps with Pandoc, and then from that to epub (e.g. Google Docs allows you to download a Doc as an epub)?
There's a Youtube playlist[1] of recorded lecture videos by Wasserman from his CMU course that uses All of Statistics as a textbook.
I haven't watched more than a couple of mins of them (yet), so no idea how good they are (but the blackboard is quite hard to see in the recordings). However, it obviously doesn't have all the extra stuff that you would get in a proper MOOC.
Do you use the FFupdater app?