Consider the possibility, video -> article conversion:

- a lecture, a tutorial, a podcast
- broken up into sections (youtube - chapters, Q/A from a podcast)
- if a diagram or ppt slide exists, identify and extract it
- create article, sections composed of text and/or diagram/ppt slide with terms and concepts linking to their own articles for definitions. Actual text cleaned up and rephrased into a readable form.

possible? Quite. 
soon? Perchance.
GM