The jingle comes from Random House Home Video, the VHS label of the famous book publisher, whose rainbow house logo played at the start of tapes in the eighties and nineties. Kids who grew up on those releases remember the little fanfare as part of the ritual of popping in a cassette. The ident resurfaced online as nostalgia bait, and editors now drop the jingle to fake a wholesome tape opening or to undercut chaotic footage with something cozy. It endures because that brief swell of synths instantly signals childhood.