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Last night I was able to go to a taping of a podcast in Dublin by Greg Proops aka "the smartest man in the world"
I drive alot in my job and so while away my time listening to mostly comedy podcasts like this one or documentaries from the BBC or RTE.

Has anybody got any suggestions for other podcasts for me to try?

Neil MacGregor (director of the British Museum) did a radio program called History of the World in 100 Objects. it's available as a podcast. Its pretty good, I listen to it on long car trips because at 15 minutes each, that 25 hours of talk time.

Also, Stuff You Missed in History Class is also usually interesting, as well as This American Life and Planet Money.