If you're a Mac or iPhone user, you can subscribe to the podcast on iTunes, right here:
If you're on an Android, you can subscribe to TriPolar via a 3rd party app like this one:
You can stream/download/subscribe to all episodes by clicking where it says download, in the bottom right corner of each episode's audio block.
Each episode is also on my YouTube channel.
Finally, if you're super nerdy, here's the direct RSS feed... thingy: