Why it matters: It's a big step in the right direction for Nielsen, a decades-old media (mostly TV) measurement company that's trying to break into the digital space. The difficulty for many measurement companies to capture video viewing data across platforms (cable, streaming, mobile, etc.) has been a cause of concern for many advertisers and publishers, who need to sell or buy ads against all viewing data.
New updates: In a statement, Nielsen says it can now provide clients with currency-level measurement (measurement of content consumption live or recorded, 3 and 7 days after the initial broadcast) for both Hulu and YouTube TV. Nielsen already includes ratings for other streaming services, like Sony's Playstation Vue and Dish's Sling TV. Nielsen will be able to measure consumption on those two platforms, regardless of the device: mobile, tablet, smart TV, etc.