Listening to Podcasts always brought good things to me. Not only entertainment, but knowledge and sometimes deep understanding of subjects.
A great example of educational programmes is [CRE](http://cre.fm/cre200-stadtplanung) (German only) by [Tim Pritlove](http://de.wikipedia.org/wiki/Tim_Pritlove) who, in his 200th episode, talked about city planning with Thomas Stellmach. In this episode, Thomas mentioned a great piece of film by [William H. Whyte](http://en.wikipedia.org/wiki/William_H._Whyte) called The Social Life of Small Urban Spaces.
I strongly encourage you to take an hour of your day and watch it, if you are in any way interested in architecture or human centric design.
**UPDATE:**
Sadly, the Video isn’t available on vimeo anymore. You can still [buy the book](http://www.amazon.de/Social-Life-Small-Urban-Spaces/dp/097063241X/ref=sr_1_1?ie=UTF8&qid=1389308482&sr=8-1&keywords=the+social+life+of+small+urban+spaces) though.