When was TV first invented and who was responsible for it?

Television developed gradually, during the 1920s and 1930s. There are many debates about who invented TV. The truth is a number of important inventors worked on it, rather than just one person. And many inventors had no idea that someone else was trying to do the same thing they were working on. Some of the pioneers in inventing television did their work in the 1920s: they included a British inventor named John Logie Baird, and an American named Charles Frances Jenkins. Back then, the inventors were developing mechanical television, but it was noisy and of very poor quality. By the 1930s, two other important inventors perfected electronic television, which had a much-improved picture and would become the preferred technology. They were Vladimir Zworykin and Philo Farnsworth.