YouTube made up 9.7% of all viewership on connected and traditional TVs in the U.S. in May — the largest share of TV for a streaming platform ever reported by Nielsen’s monthly “The Gauge” report. Netflix ranked second, claiming 7.6% of viewership. Among streamers only, YouTube’s total viewership was close to 25% market share.“We’re not talking about your mobile phone, your laptop, that I’m sure you see your kids using all the time, but on the biggest screen in the house, the TV,” said LightShed media analyst Rich Greenfield. “Every [media] executive has to be paying attention.”