I don't really think there is much to look into, and if there was a relationship it is probably spurious. You don't know the reasons why they are looking at any

I don't really think there is much to look into, and if there was a relationship it is probably spurious. You don't know the reasons why they are looking at any particular video, nor do you know if they are using auto-play (which might not show on stats). Possibly you can see whether you make it past the alumni filter (http://www.quora.com/Y-Combinator/Do-all-YC-partners-read-each-application http://www.quora.com/Y-Combinator/Do-all-YC-partners-read-ea...), but beyond that I am not sure.