Open a playlist that contains podcasts and turn on the “Description” column in the “View Options”. Each item in this column contains a circled “i” icon that opens up the “Podcast Information” window.
I have two small suggestions to improve this window:
There should be a way to open/show this window with a keyboard shortcut, and (optionally) a menu item as well. Shift+Cmd+I is a suitable candidate (and this shortcut could also toggle the visibility; that is, hide the window when it is already visible).
Only the selected row should display the icon to minimise the visual clutter of displaying this icon on every row. This is analogous to the “iTunes Store” links that are displayed in the respective name/artist/album rows when viewing music listings.
This is Apple “bug” #6075588.