easy, he broadcast on digital while watching the draw on terrestrial. 3-4 seconds delay allowed him time to get the numbers on the balls. I do it all the time at home during Mastermind, Question Time, Millionaire, etc calling out things in advance from the old telly in the kitchen while family watches the digimonster in the drawing room. They think I'm a genius. Kids get scared when I do it during a live news broadcast though