DIY: Apple TV Hard Drive Upgraded to 120GB - Gizmodo
gizmodo.com/gadgets/home-entertainment/diy-apple-tv-hard-drive-upgraded-to-120gb-246567.php
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
In case you were wondering, it is possible to upgrade that measly 40GB hard drive on Apple TV, in this case to 120GB. Tipster Jonathan Bare says he's done it, resulting in a capacity of 107.36GB. Now that's more like it.