You can now read 10 articles in a month for free on BostonGlobe.com. Read as much as you want anywhere and anytime for just 99¢.

The Boston Globe

Business

Nielsen to measure mobile viewing

NEW YORK — Starting next fall, Nielsen will begin counting television programs watched on mobile phones and tablets within its traditional TV ratings.

The company responsible for measuring TV viewership said Monday it will use codes embedded by networks within the programs to collect this information.

Continue reading below

Nielsen’s measurements are used to set advertising rates and are the lifeblood of television’s economic system.

The change is not expected to have an immediate, dramatic impact in the ratings since Nielsen estimated that only 6 percent of current viewing is not measured now. But the impact could be bigger on programs that appeal to young people who are more apt to watch on mobile devices.

You have reached the limit of 10 free articles in a month

Stay informed with unlimited access to Boston’s trusted news source.

  • High-quality journalism from the region’s largest newsroom
  • Convenient access across all of your devices
  • Today’s Headlines daily newsletter
  • Subscriber-only access to exclusive offers, events, contests, eBooks, and more
  • Less than 25¢ a week