240-line television system

The 240-line television system is an early TV standard where each image is composed of 240 horizontal lines displayed sequentially. Developed in the 1930s and used mainly in the Soviet Union, it provided a picture resolution that was sufficient for recognizing basic details. The system used interlaced scanning, meaning it drew half the lines (odd or even) in one pass and the remaining lines in the next, helping to create steady images with less flicker. It operated at a relatively low frame rate, resulting in less smooth motion but offering a practical approach to broadcast technology at the time.