Sorry, should have added more detail. I don't have any episodes downloaded. They are repeated so often on Dave here in the UK that I never really saw the point in finding out how to do torrents and all that stuff. Plus I'm at that age where I'm too old/busy/lazy to learn about new technology/techniques unless required for work, and my kids aren't yet old enough to show me how to do stuff or work it out for me.
Thanks anyway to all of the above for the hints and suggestions.