The three-note NBC chimes date back to the network's radio days in the late 1920s and became one of the most recognisable audio logos in American broadcasting. The 1999 Studios version repackaged that signature for television production idents at the end of the decade, with this high tone edit pitched brighter for meme and edit use. Online it sits alongside other network stings like Law and Order DUN DUN, shared in nostalgia threads and reused whenever creators want an instantly official television feel without using a full theme song.