Before digital presets, turning an analog radio dial physically moved a tuner across frequencies, so listeners heard loud static between clear stations. That in-between noise became a familiar everyday sound throughout the twentieth century and was later recorded and shared online as a stock effect. Editors adopted it as a shortcut for searching, lost signals and period settings, especially in film, radio drama and games. It remains popular because audiences recognise the meaning instantly, even though modern radios rarely make this sweeping static sound anymore.