The TARDIS landing sound comes from Doctor Who, the BBC series that premiered in 1963. Its wheezing materialisation noise was created at the BBC Radiophonic Workshop, where sound designer Brian Hodgson famously produced it by scraping a key down a piano string and manipulating the tape. As the show ran for decades and regenerated through countless Doctors, the sound became one of the most recognisable effects in television. Online it lives on in memes, fan edits and remixes, where six seconds of groaning instantly signals that something has just arrived from another time.