Bob Ross hosted The Joy of Painting on PBS from 1983 to 1994, where cleaning his brush became a familiar ritual between colours. He would swish it in odourless thinner and beat it against the easel, often joking about beating the devil out of it. Clips of that routine later circulated on YouTube, Twitch and meme pages, where the short cleaning sound was shared on its own. It remains popular because it captures his soothing process in a few seconds, separate from a full episode.