Since I'm not willing to pay for an app just to listen to one podcast, the "2 hours of new material every year" bit (I'm assuming) is also explained in Louis CK's speech about the late George Carlin.
WTF is the best comedy podcast out there, hands-down. The 2-part with Louis is worth the price of admission alone, but there's many more that are as well. If you like comedy at all and a contrarian, alternative point of view, I can't recommend it highly enough.
Little bit off topic but WTF, while awesome, isn't really a comedy podcast because it isn't funny. If you're looking for something like that check out Comedy Bang Bang or something.
Comedy is in the ear of the beholder. I have had far more meaningful laughs (whatever the heck that means) at WTF then at comedy bang bang. I would say download both of them, they are totally different things.
I dunno, it sticks pretty close to the style and tone of Maron's own stand-up, which like Louis's is deeply personal and raw and itself challenges what constitutes 'comedy' to some degree. I'd say it's funny in the same way Maron himself is funny.
You should be able to figure out what the direct link is or you can just google it.