Nielsen added over - the - top video and mobile viewership numbers to its mobile Ad Ratings measurement system as a result of a partnership with Google , allowing YouTube ads to be measured on mobile devices alongside TV inventory . Nielsen said it was the only solution measuring outside households or device activity . The product allows it to measure TV and digital ads using “ comparable metrics based on real people and real data ” . It measures viewing on any device or combination of devices ; up to now Google used different ratings for YouTube and digital TV .
Nielsen added over-the-top video and mobile viewership numbers to its Total Ad Ratings measurement product as a result of a deal with Google, allowing YouTube ads to be measured on mobile devices alongside TV inventory. Nielsen said it was the only solution measuring outside households or device activity. The product allows it to compare TV and digital ads using “comparable metrics based on real people and real data”. It measures viewing on any device or combination of devices; up to now Nielsen used different ratings for YouTube and YouTube TV.