Have you read the Steve Jobs iBiography yet? If you have, you will remember the "I've finally cracked it" Steve Jobs tells biographer Walter Isaacson. Was he simply referring to Siri on the iPhone 4S... or an Apple TV set?
According to The New York Times' Nick Bilton, the answer could be... both.
The reasoning (and reporting) goes as follows-- with Siri, Steve Jobs "cracked" the interface iTV will use. Instead of depending on remote controllers, users will simply tell Siri what they want to watch.
In his biography, Jobs also says an Apple TV “will have the simplest user interface you could imagine.” And what is more simple than speaking to something?
According to Bilton, Apple development on TV is at least 4 years old (the Apple TV STB hit the market on 2007), with a source saying "it is a guaranteed product for Apple... Steve thinks the industry is totally broken.”