An annual TV plan assumes more exposure will grow an established packaged-goods brand. Advertising weight means how much advertising you run. Imagine you are approving next year's increase: should it require fresh sales evidence?
More TV advertising is not a dependable way to grow sales for established packaged-goods brands.
Data chart
Percent of television advertising tests whose heavier plan gained sales volume or market share at the study's 80% confidence threshold. The benchmark is the share expected to pass by chance alone.
TV increases for new products showed a clear sales gain more often than those for established brands.
A test counts when the heavier plan's sales-volume or market-share gain reaches the study's 80% confidence threshold; 20% would pass by chance alone. Positive results were 33% of 207 established-brand tests and 55% of 85 new-product tests (p. 128).
Data chart
Average percent increase in television exposures to the target audience in the heavier plan over the regular plan, for established-brand tests with and without a clear sales gain.
For established brands, tests with a clear sales gain had smaller average exposure increases than tests without one.
Exact averages +77% and +88% from Table 2 (p. 128), which covers 141 tests with exposure data across new and established brands. The table gives no separate established-brand count for these rows; its column heading is not that subset's count. A clear gain uses the same sales-volume or market-share threshold as Visual 1.
Key takeaway
Test added TV weight for established packaged-goods brands before relying on it to grow sales.
Television tests of frequently bought, low-priced U.S. packaged goods in 1982-1988 measure sales volume and share, not profit or long-term brand equity. They do not establish how digital media, other sectors or other markets respond.
Source
Lodish, L., Abraham, M., Kalmenson, S., Livelsberger, J., Lubetkin, B., Richardson, B., & Stevens, M. (1995). How T.V. Advertising Works: A Meta-Analysis of 389 Real World Split Cable T.V. Advertising Experiments. Journal of Marketing Research, 32(2), 125-139. [Published paper](https://journals.sagepub.com/doi/10.1177/002224379503200201).