Last year we sold … 2.8 million Apple TVs. This year, just in the first six months of our year we’ve sold 2.7.
Tim Cook at D10 1:45.
I note the “our” in “our year”. This implies fiscal year (that and the fact that he spoke in the past tense before six months had passed in the calendar year.)
Given the public information we have so far, it’s now possible to estimate with some confidence the sales history of Apple TV. The following chart is my estimate. It includes all the known data so far with some interpolations to fill in the gaps.

Assuming average revenues per device of $100, we can get an estimate of about $344 million in Apple TV hardware revenues for calendar 2011. This is not a large amount relative to Apple’s other lines of business. It is, for example, only 14% of the overall Peripherals revenues and only 5% of the iPod.