Convert Web Video to iPod and Apple TV format
TubeTV is a great little app that allows you to easily convert web videos to either iPod or Apple TV compatible formats. All you do is direct an URL to the app and it’ll download in either iPod or AppleTV compatible formats. TubeTV requires the Perian QuickTime plugin, but don’t worry it’ll tell you if you don’t have it installed and link to it for you. Other than the extreme ease of use, TubeTV is great because it’s totally free! Check below for a screenshot of TubeTV in action.
Update 6/19/2012: Great news! This is no longer necessary because Apple TV now includes the ability to watch YouTube videos directly on the device and your TV without any conversion at all.