Roku is pitching advertisers a tool that shows how much money they're wasting on TV ads

Activation Insights measures how many people saw a TV ad over a period of time. It compares the TV audience to its own audience to show advertisers the people that their TV ads didn't reach

Link de la noticia: 
https://www.businessinsider.com/roku-wants-to-steal-big-tv-budgets-from-networks...