Philosophize This is an excellent Podcast presented by Stephen West. He has a good sense of humor and he takes ancient philosophers and presents their ideas in a fun, contemporary, irreverent way.
In 30-minute chunks over his 40 episodes so far, he has covered pretty much all leading western and a few eastern schools. The only complain I have is that it, like most Western authors, mostly leaves out Eastern schools. Hopefully something he can include in future episodes.
I highly recommend this podcast. If you are into podcasts or into philosophy then this will be a treat.
And if you are not yet into Podcasts - check them out. A really great way to learn and be entertained on the go!