Oddly for Christmas Eve, BBC radio offered a well-researched programme, "THE SAMURAI" (Thursday 9.00-9.45am, 24 December 2009). This show was on BBC Radio 4 in their series called "In Our Time", which discusses major topics in history, science, religion, philosophy etc. Sadly BBC used DRM in the program to prevent listening to it as downloaded podcast. So, I "found" a analog recording of the programme in plain old MP3 format (43 minutes, 3MB). Enjoy!