30-line television

A 30-line television refers to a former standard resolution system used in early analog television broadcasting. It indicates that the picture was composed of 30 horizontal scan lines, or rows of dots, that made up the image. The low line count resulted in a relatively coarse picture, with limited detail and clarity compared to modern high-definition TVs. This standard was common in the early 20th century and laid the groundwork for more advanced television resolutions. Today, such low-resolution systems are obsolete, replaced by digital formats with thousands of lines for much sharper and detailed images.