That happened to me yesterday, after I finished watching the paper about the medieval bread experiments. I clicked on UCD's youtube channel, looking for more nice stuff like it, and this one came up.
It started up on its own, and I would not have watched it otherwise. But it started, and the beginning sounded interesting, and it only got better from there. So I stayed with it until the end. It's a lovely, lovely piece - if you have a few minutes, do watch it. And thank you, dear readers, for being my excuse for doing blogging research, resulting into finding things like this!