Homes Under the Hammer is a long-running BBC daytime property programme in which presenters follow people who buy homes at auction, renovate them and either sell or rent them on. Its theme music has become shorthand online for the moment a deal is done and work begins, even when listeners have only heard a brief sting. Creators reuse it because the tune is instantly recognisable to daytime television audiences in the UK, and it adds a light, familiar frame to renovation, house hunting and auction content without needing any explanation.