How to synchronise your iTunes purchases from one iTunes to another iTunes

When you set up a brand new iTunes media server, you will typically be starting with a blank media library. Many people will also have another copy of iTunes, say, on a laptop, and they'll use this one to download new content the iTunes store. How can your server and laptop iTunes installations talk together?

One of the simplest methods is to use iTunes "Home Sharing". This blog shows how to set this up to copy your existing media from your iTunes laptop to your iTunes media server and set up your media server to automatically pull new purchases from your iTunes laptop