The Untold History of Television | The Invention Changed the World

How did television go from a spinning disk with tiny holes to the screen in your pocket? This is the full history of television, from the 1870s to today. In this video, we follow the people, machines and ideas that built television: the first discovery that light can become an electrical signal, the spinning disk that scanned a picture line by line, the scrap-built machine in a cramped attic, the first fully electronic image, and the business battles over patents that shaped the TV business. How the telegraph and the telephone set the stage for television in the 1870s Why a selenium discovery in 1873 mattered: light could change an electrical signal How Paul Nipkow's 1884 spinning disk scanned a picture one thin strip at a time Where the word "television" first appeared, at a science conference in Paris in 1900 How John Logie Baird built a working system from scrap parts, and why his 30-line picture was so hard to recognize How Philo Farnsworth, a farm boy from Idaho, sent the first fully electronic image in 1927 How RCA, Vladimir Zworykin and a famous patent dispute led to a license agreement in 1939 How the 1970s and 1980s changed what we watch, from HBO in 1972 to CNN's 24-hour news in 1980 All characters and scenes are fictional illustrations created for storytelling. They are not photographs and do not show the real faces of the people mentioned. Dates and events are explained as simply as possible; please check the sources of your choice for deeper reading. If you enjoyed this history of TV, subscribe for more history documentaries that explain how everyday things came to exist. 📺 Can you imagine a world without television? What was the first TV you remember seeing in your home — and what was the first show you watched on it? Tell us your story in the comments! 👇 ❤️ If you love discovering the untold stories behind everyday inventions, subscribe to A-Z Explainer for more fascinating history! 🔔 #HistoryOfTV #TelevisionHistory #HistoryDocumentary