Apple 3 Version 2 to be exact. I'm not sure why I went so long without one. I've basically been using all sorts of software to try to stream movies/TV from my iMac (in the upstairs games room) to my main HDTV (downstairs in the living room) and eventually using USB hard drives/SD cards to copy movies to them and plug them into my HDTV. Such a hassle. Using the Apple TV, my streaming life got 1000x easier.