Called Nielsen One, the new service would count viewership across streaming and network platforms and devices. "With Nielsen One, we are delivering a single, comparable metric for TV and digital that will provide video consumption across all platforms, services and devices. For media buyers and sellers, this means better monetizing their assets and maximizing their investments,'' said Nielsen COO Karthik Rao. "Today's announcement marks a major milestone for Nielsen as we put our cross-media vision into motion. We've made significant enhancements over the last year to turbocharge the tech and data science required to make an industry wide cross-media solution a reality."