Whose invention was the television?

Television grew from the work of many people. Scottish engineer John Logie Baird demonstrated a mechanical television, using a spinning Nipkow disc, to members of the Royal Institution in London in January 1926. In the United States, Philo Farnsworth, who had sketched his idea as a teenager, transmitted the first image with his all-electronic “image dissector” camera tube in San Francisco in 1927. Vladimir Zworykin at RCA developed the iconoscope camera tube around the same period, and a long patent battle followed between RCA and Farnsworth. Electronic systems soon beat mechanical ones, and the BBC began a regular high-definition service in 1936.