According to Apple's support document, About iTunes LP and iTunes Extras:
On the other hand, iTunes LP and Extra seem like types of feature that would work best on home theater setting. I am guessing Apple TV is getting a major hardware bump in the near future.
Although the requirements are for iTunes 9 running on Mac OS X or Windows, it does seem to imply that it would take a miracle to make iTunes LP and iTunes Extra work on current Apple TV hardware.Minimum system requirements...:
...
- Screen resolution of 1280x800 or greater
- 2.0GHz Intel Core 2 Duo or faster processor
- 1GB of RAM
On the other hand, iTunes LP and Extra seem like types of feature that would work best on home theater setting. I am guessing Apple TV is getting a major hardware bump in the near future.