Isn't it to do with vertical sync? It takes a while to record every line of pixels, so the tv show frame must have changed in between recording the tv and recording the desk. I've seen the same thing with lightning flashes and other mirrors.
THANK YOU. I was wondering how long this picture would be here without someone simply pointing out that a digital camera does not record every single pixel in a picture at the same time.
But its fans can be annoying asf