The document discusses the history and future of 3D television. It describes how 3D TV originated in the 1830s with early 3D cameras and the first 3D movie in 1922. Today, people can watch 3D movies at home using 3D-ready TVs and special glasses, though some find the glasses uncomfortable. Scientists are working to develop 3D TV that does not require glasses by using lens technology or allowing users to control eye strain and 3D levels. The future of 3D TV is predicted to include more immersive, glasses-free viewing experiences as the technology continues to improve and become mainstream.