In early 2016, eMarketer (among others) predicted 2017 would be the first in which digital ad dollars actually surpass TV. Later, eMarketer revised its forecasts because that milestone was actually reached in 2016. The research firm estimates US digital ad spending hit $72.09 billion, while TV ad spending hit $71.29 billion, just shy of digital. In 2017, expect that gap to widen. But advertisers are increasingly looking to bridge the screens in their marketing campaigns: the digital screen – increasingly that’s a mobile screen – and the television screen. That’s because the old TV set still offers the best reach, while the smaller, personal screens offer up the best targeting, interactivity, and data. Somehow, marketers need to take the best…