The air is sweet, everything’s A-OK and friendly neighbours abound - yes, there’s no place that sounds quite as idyllic as Sesame Street. But, of course, while it's the setting for the longest-running national US children’s television series in history, it’s not actually a real place. Because, after 50 years, it’s finally been revealed how you get to Sesame Street - and the answer is to head to West 63rd Street and Broadway in New York.