Prototype models of the Apple Television exist and feature Siri and an iSight camera for FaceTime according to a report from Cult of Mac. Quoting a “well-placed” source, the Apple TV is similar in design to the 27″ Apple Thunderbolt display – but larger in size.

The iSight camera has integrated facial-recognition software, allowing it to zoom in on faces at a distance (i.e on a chair or couch) as well as track the user as they walk around the room.

The Apple HDTV makes FaceTime calls using the built-in iSight camera. The camera is sophisticated, with facial recognition and the ability to zoom into the user’s face and follow them as they walk around the room. This allows users to make video calls from the couch across the room, rather than having to stand smack in front of the TV.

In addition, calls are initiated by Siri, the iPhone 4S’s virtual assistant. “[Apple] used Siri to make a FaceTime call,” the source said.

Back in February, Apple were reportedly exploring component supplier options for the upcoming Apple HDTV but there is no concrete evidence to point towards a particular release date. Rumors thus far have suggested that late 2012 would be the earliest possible launch-date for an Apple television.