I just got this code in my email so I thought I'd share it, with it you can get any individual episode for $5 each. You can use the code as many times as you'd like, maybe it'll be helpful for some people. I know it's not as good as the episodes I gave out for free, but it's still something.

The Telltale Store;
http://www.telltalegames.com/store/

COUPON CODE: SE9-52H-VK6-D83