We are nothing if not a nation of laws, and according to the official arbiters of audience measurement at Nielsen, the 201516 television season begins today. Do you feel any different? In this age of bingeing and viewing on demand, the start of a new TV year isn’t quite the Pop-Culture Moment it was even as recently as a decade ago. That’s particularly true for younger viewers, many of whom are much more inclined to browse Netflix than park themselves in front of the tube for a network-dictated evening of Must-See TV. And yet, barring a total year-to-year collapse in the linear model, tens of millions of viewers will still return to the broadcast folks over the next few weeks, successfully wooed by months of marketing to check out the first episodes of The Muppets, Code Black, The Grinder, or one of the couple dozen other new shows. Many