Thread:HMcCoy/@comment-28838092-20140720004418/@comment-25199687-20140720151057

This guy has watched about 7100 videos...

https://www.khanacademy.org/profile/Sphairistrike

I think he has watched many deleted/pre-released videos.

I know about a couple of pre-released sections on Khan Academy myself.

https://www.khanacademy.org/partner-content/big-history-project

https://www.khanacademy.org/partner-content/tate