In another step toward taking on measurement leader Nielsen, comScore (which merged earlier this year with Rentrak) is tapping new metrics from Adobe Systems to measure video consumption across multiple screens, including televisions and mobile devices. “By using Adobe services,” reports Variety, “comScore will be able to help marketers understand the number of video starts involved with a piece of content; average time spent watching; and rate of ad engagement. Content companies, meanwhile, will be able to use the insights to forecast how different kinds of video performs across platforms and particular audience segments.”