
Part of the success of Stranger Things comes from the painstaking accuracy of its period setting. The Duffer Brothers packed the show with cultural references to the 1980s, from the mullets and scrunchies to walkie talkies and references to analog media and classic arcade games like Dig Dug.
With such attention to detail, even the smallest slip won't make it past fans, so it quickly went viral when fans started spotting a brand logo in Stranger Things 5 that shouldn't have been there.