Here's a link to a video from 1972 of the experiment:
1. http://www.youtube.com/watch?v=t2PGnHHnRMk0
2. http://www.youtube.com/watch?v=tzYAdGl_0mA&feature=relat...
3. http://www.youtube.com/watch?v=KSiMM_GIiyA&feature=relat...
In total it's about 45 minutes long.
Here's the part from the transcript on that site: http://www.youtube.com/watch?v=t2PGnHHnRMk#t=10m0s