The video shows how it is possible to use split screen technology to give the impression that the Lottery balls are in the live shot. In fact, they are a static image.
The most popular theory about Brown’s Channel 4 show is that the left hand side of the screen, which showed the numbered balls lined up in a row, was a frozen image. In reality, an assistant was putting the balls in place during the 30-second delay between them being drawn on the BBC and Brown revealing his numbers. The entire screen only became live at the moment Brown walked towards the balls, according to this theory. – telegraph