The Skeptic Zone is an Australian skeptical podcast. It is generally entertaining and usually concludes with a segment of drinking and conversation in the pub. They are the only podcast I know that specifically accepts donations to pay for rounds of drinks.

On 16 October 2009, they posted Episode #52 featuring an interview of Crocodile Dundee Ian Harris, an orthopedic surgeon and the head of Orthopedic Trauma at Liverpool Hospital, by Eran Segev. Prof. Harris discusses science-based medical practices in medicine or lack thereof, especially in his surgical specialty.

I'm not passing judgment or endorsing Harris's opinions as it is outside my area of expertise and I am not familiar with the research discussed. It is, however, the most thought provoking medical conversation I have heard in a long time. It is long, but worth a listen.