Who could be counted as a valid viewer to the Gala show for Guinness World Record?
an adult who watched the live Gala show for four minutes on CCTV-3
a three-year-old kid who watched the live Gala show for half a minute on CCTV-4
a teenager who watched duplications on CCTV-1
a housewife who watched duplications on CCTV-2