India, Nov. 28 -- Nine years ago, no one could have predicted the cultural phenomenon "Stranger Things" would become. As the series enters its final season, it leaves behind a billion-dollar legacy. With its flagship show coming to an end, can Netflix maintain its momentum? Los Angeles (tca/dpa) - Before the sci-fi series "Stranger Things" premiered on Netflix , several traditional studios had already passed on it. Its creators were first-time show runners, unknown young actors were cast in lead roles, and even though the show starred kids, it was not for children. That was nine years ago. The 1980s-set show about a monster that wreaks havoc on fictional Hawkins, Ind., hit a chord with Netflix 's global subscribers. "Stranger Things" has si...