Why did exploration of the human body featuring super junior get removed from youtube?

it said "this video is unavailable" but i know youtube has everything. but because of this i can't watch this awesome show, if you know where i can watch ehb with eng subs not video hosted by youtube (which it'd be hard) i don't want to download the epidoes from websites either. I'm currently on ehb ep 11 part 1 so far and i can't seem to watch it. im soo FRUSTRATED, i want to finish watching it or i'll just be deppressed ;((( please tell me!!! thank you!!!