See, that's the question. Based on part of her explanation, part of it could be true. If she were in a 'tent' with 30 HD cameras surrounding her, then they would have to be set to different focal points in order to capture the image as they projected.
The catch behind a green screen is that you have to have the 'green' show on the recorded video to know which RGB to block out.
I think that it is a fake because to have the system work the way that it was described, you would have to have a way to record the video without interrupting the video feed ("As displayed on the boobtube") Unless I see proof... I call "Misleading"