Over the past few years, the systems that rate TV shows have struggled to keep up with the changing ways we watch.

First, there was a struggle over whether to include shows that people recorded and watched later on the DVRs. Then, ratings companies figured out that plenty of viewers had shifted to on-demand services like Hulu, so they decided to track streaming numbers. But now, Nielsen, the ratings company, is going to get even more granular when it comes to online viewing by tracking the individual tools that people are using to watch shows. 

What does this mean for the future of TV? Todd Spangler wrote about this for Variety and he joins A Martinez to talk about it.