Radio tuning is a classic stock sound effect rather than a clip from a single show, and versions of it have been used for decades in radio drama, film and television to suggest searching for a signal. Online, creators reuse the same hiss, clicks and drifting voices for memes, edits and storytelling, because the sound needs no explanation. It remains popular as a shorthand for changing channels, passing time or moving between eras, and its short length makes it easy to drop into videos, podcasts and presentations.