To do so you have to install a "normal" version of OSX on your Macbook, and then to get, patch and install on it a few files from the Apple TV system. As for now, Appletvhacks does not provide the patches, though, out of fear of a reaction from Apple legal. And they're probably right not to, given that this hack - which violates copyright laws - might well jeopardize the sales of the Apple TV.
