Automatically Download Available iTunes Purchases
If you subscribe to any TV Shows from the iTunes Store Apple can send an email notifying you when the latest episode is available. Then you can go to iTunes' "Store" menu, click "Check for Purchases...", and the download will commence.
A while back I had posted a script called Check For Purchases which used GUI scripting to automate this process. It required that you hardcode your iTunes Store user name and password in the script and also have GUI scripting enabled. Yuck. These are two of my least favorite--if not my most least favorite--techniques for using a script. But, it turns out, there's an even simpler and better way to accomplish this...