Nielsen, the holy vanguard of television ratings, has finally figured out how to track viewership from Netflix and Amazon's streaming video services. And when it launches next month, it could fundamentally change the sorts of shows you see from them. Since neither Netflix or Amazon offer detailed viewership data, Nielsen has developed a way for its rating meters to track shows by identifying their audio, the Wall Street Journal reports. While it won't track mobile viewers, it will help level the playing field for content owners when negotiating streaming deals, who have so far been clueless about how their shows are performing on Netflix and Amazon. That might lead to some of your favorite shows disappearing, but it could mean streaming data will help decide wether that show you've been binge watching gets cancelled.