Thanks Peter, Yep, that's it.
The story behind this film is that the bloke in the white coat is a professional actor who does short educational movies and this was supposedly a set-up test for lighting/sound/set etc. He actually was able to ad-lib all of the speech simply because he had done so many previously that he knew what it was supposed to sound like. He made up every single detail on the spot...and it sounded accurate. That's the story, but I think it was a bit more than that, the slides and the note at the end make me think there was a level of preparation to this. But regardless, it is extremely well done for a put-up job!
I have another sound-only recording of a real US Air Force training video which was used to teach missile guidance systems. I'll put it up tomorrow, it is hilarious.
Cheers
Whizz