Pingu began in 1990 as a Swiss stop-motion children's television series following a young penguin, his family and friends in Antarctica, with characters communicating through expressive sounds rather than spoken language. Its cheerful opening theme became closely associated with the show itself, and clips of the tune later circulated widely in online edits, reaction videos and short-form memes. The sound endures because it is short, instantly recognisable and wordless, making it easy to reuse across languages and contexts without needing any explanation of the original episode.