Well, nothing is as easy as it seems. But once we have done it, it is so easy that we forget the problems we had initially. That's what happened to me. When I first went to Dan Gillmor's blog and then to the blog with the video, I thought the black "screen" was where I would watch the video. Finally, though, I realized that there was a link and that was what I needed to click on. But, when I posted, I forgot to share my experience with readers of my blog. So here goes: Underneath the black "screen" with the title is the link that says "Four minutes about podcasting". Click on that and it will open in another window.
Sorry for not making that clear the first time. I think it was the "screen" that confused some of us!