0.05 of a rating point. That’s all it was.
“Nielsen Says Glitch Affected Fall TV Ratings,” Wall Street Journal, October 11-12, 2014 B3. A small error introduced through a software update in March caused Nielsen to mis-report how many people watched certain TV shows at the start of the fall season. Downstream impact on the millions of dollars of ad buys, the cost of which depends in part on the ratings as reported by Nielsen.
Are you in the information reporting business? Nielsen certainly is. Do you rely upon an information reporting business to accurately report information to you? What if the information is wrong?