There are a number of programs that allow you to subscribe and listen to podcasts.
I use iTunes which is easy to use and free. You can download it for free from apple (
www.apple.com/itunes).
After installing it you can subscribe directly (use advanced menu) or click on "Music Store" (on the left side of screen). After it loads click on podcasts (on left). Then search podcasts (on left) for "poker" and you can subscibe to which ever ones you want.