Question 37. When and where was the first television demonstrated?
____The first television was demonstrated in 1927 in San Francisco._________________
Question 38. Are modern televisions flat?
________Yes, they are.________________
Question 39. Why have the viewers had more selections of programs from the Internet?
______Because the smart TV was invented._________________
Question 40. What is the percentage of the world’s households owning a television set?
_______It is 79% of the world's households owned a television set in 2013.________________