OK, it cost me a new Sony headunit for my car so I could play mp3s from CD (It's for educational purposes, Dear), but I'm close to the end of 161. The head unit was a fairly simple drop in, but had to cut and solder the wiring, but same colour coding - sometimes you win!
Learnt lots of details I didn't know, enjoying his style - the hyper-enthusiastic, slightly absent-minded professor!
Currently he's getting overly excited about the moons of the gas and ice giants, and rightfully so!
From the start of the lecture on Jupiter and Saturn, he was missing the red channel on his data projector - he struggled on, but I can only imagine what the images of those two planets look like minus the red channel!!

At some stage he moves his laptop and the full image appears! VGA plug connection, obviously. (As I've always said - the most interesting sight at a University is a handful of professors trying to get the slide projector working!)
Every minute of car travel is devoted to listening now. I'm looking forward to the wrap up of 161 and then move on to 162. Thanks for the links to these lectures.
ps. He gives shoutouts to some of his podcast listeners who contact him. He seemed chuffed with a listener in Tasmania, but hoped for one at the antipodes to Columbus, Ohio, which he calculated to be 300km (or was it miles

) west of Perth. Maybe Perth would do! However, his calculation seems to be way out?
http://en.wikipedia.org/wiki/Antipodes