For discussion and comparision with how televisions are made today, we look at a vintage documentary of 1998 on SONY TRINITRON TV and how was it made. Great views of Japanese SONY factory workers and-Television Electronics; Vintage Documentary Scientific Manufacturing Skills. This partially restored film is a re-upload of one of several in our vintage television technology series. It provides a great behind the scenes look at factory manufacturing of SONY's famous Trinitron Television screens. Flat screen, CRT (cathode ray tube), high resolution screens. Trinitron screens were used for desktop computers as well as home television sets. SONY's Trinitron was a very successful product, and many are still in use today. Sony Technology Center Pittsburgh.