‘Four billion’ seems to be something of a magic number when it comes to daily video views. While YouTube hit the four billion mark in 2012, this year both Facebook and Snapchat say they hit they each see four billion video views. While achieving that kind of scale in such a short space of time is a remarkable achievement no matter which way you look at it, the breakdown of those numbers is always going to be important to advertisers, yet they don’t always get quite what they’re looking for. Here Rob Norman, Chief Digital Officer for GroupM Global, explains what agencies need in order to make major investment decisions. Norman also discusses the GroupM viewability standard and the growth of programmatic TV.