On the 3G, 4G and 4G iPod nanos, I know you can have on the player a single named podcast and three previous, five previous and ten previous podcasts that have been uploaded. Question: how can I configure the iPod nano 3G and 4G so it plays back the podcasts from oldest to newest? (For example, on my 4G iPod nano I the current and two previous podcasts of TWiT Network's This WEEK in Tech. I want to be able to select the oldest podcast on the list and it will play that, then it automatically play the newer ones straight through.) I know that you can do this with the 6G iPod nano and the 3G/4G iPod touch running iOS 4.1 or later.