Once registered, you can:

  • - Read additional free articles each month
  • - Comment on articles and featured creative work
  • - Get our curated newsletters delivered to your inbox

By registering you agree to our privacy policy, terms & conditions and to receive occasional emails from Ad Age. You may unsubscribe at any time.

Are you a print subscriber? Activate your account.


Published on .

David F. Poltrack was incorrectly identified on the cover of Advertising Age (Nov. 13) as NBC's research chief. Mr. Poltrack is chief research officer of CBS Corp. and president of CBS Vision, and was identified as such in the Viewpoint piece he authored, "Why TV Needs Commercial Ratings-Now" (AA, Nov. 13, P. 22). Ad Age sincerely regrets the error.
Most Popular
In this article: