Just discovered the podcast, I liek it very mcuh but I have one suggetsion for improvement.
When one has a topic where there is not clear agreement why not get the other side on the shwo at the same time, this should illuminate the issues more?
For example, you had an episode on testing quantum gravity witha table top experiment yet you pointed out at the end fo the relevant interview that others (eg at BAckreaction blog) doubted it would work. Why not have them on at the same time and thrash it out?
Another example you had Alex Vilenkin on telling us the universe is not past eternal, yetg Anthony Agguirre the FQXI administrator states the opposite, again why not have them on at the same time?