What is AirMyPC?
AirMyPC allows you to wirelessly AirPlay mirror your Windows PC screen and sound to your TV through 2nd/3rd AppleTV.
Basically AirMyPC lets you to mirror your computer display through your AppleTV just like you do with your iPhone and iPad.
With AirMyPC installed - all these wires that connect your computer to your TV are not needed anymore. Once installed, AirMyPC streams whatever you see and hear on your PC to your Apple TV - wirelessly. With AirMyPC installed, with a few mouse clicks, you can easily stream your family videos and images from your Windows computer to your big TV screen