The Reith Lectures

Every year a series of lectures known as the Reith Lectures, which began in 1948, are broadcast on the BBC. You can find out why they were initiated and read a short history about them here.
In this modern era of technology it is now possible for you to not only listen to these lectures on your computer in your own time but to also download them from the internet. In addition you lucky, lucky learners transcripts of the lectures are also supplied so you can check those chunks you missed when you listened.
Here is a link to the BBC and this year's lectures by renowned economist Jeffrey Sachs, who outlines how we can face the changes and problems the 21st century presents us with.
You can download this year's lectures and save them to your computer to listen to again. You may need to navigate through a few pages to do this and you will need to follow the instructions on the BBC website about how to do this. But don't wait forever as the lectures are only available to download for a certain amout of time after they are first broadcast.