It looks like a bigger Cinema display and has Siri and Facetime
According to a source, the rumored device exists at Apple and features Siri integration and Facetime capabilities
According to a Cult of Mac's source (an insider) the so rumored Apple HDTV device exists and looks like an actual Apple Cinema Display but bigger and with Siri and Facetime.
You have more coverage of this in the link below.
NEWS SOURCE: http://www.cultofmac.com/164917/ive-seen-the-apple-hdtv-with-facetime-and-siri-claims-source/
Our thanks to 'Kaos2K' for this news story!