The interview below is known, but not enough, I think. This gentleman with these charming sideburns, you may have heard about him, is Isaac Asimov, one of the most important (and best) science fiction authors with written novels, short stories, books and articles promoting and explaining science to the general public. The other guy on the video is Bill Moyers, another guy that, if you have some time, you should spend sometime to check all he did and does. This interview happened in 1988.
The video is divided in 3 parts, part 1 is below, the others are here: part 2 | part 3.