It great that you have John Alcorn on you tube, you need someone with a good irish accent to tell you what he is saying, sounds like Dowler to me, I am Irish but lived in England most of my life, I often don't understand irish people are saying.
Have you thought about getting in touch with the Television Channels, I am sure they would help you. I am more then sure people would like to see the clip of John taking about his family and then on the Fair Head ship, Belfast, great piece of history.