A recent report from Integrated Media Measurement, Inc. (IMMI), based on data from 3000 panelists in six major markets, finds that though multi-platform advertising increases reach over individual platform advertising, the effect is not simply additive.
Showing that advertising on more than one platform offers demonstrable benefits, some of the study highlights include:
Citing a luxury car campaign from late 2007, using multiple platforms in their advertising campaigns, the report notes that If you look at only television, you conclude the company reached 56.4% of the panel. Looking only at radio you determine the ads reached 25.1% of the panelists. However, the effective reach of the entire multiplatform campaign isn't the aggregation of these two results. There is overlap in panelists who saw an ad on television and heard it on radio.
Automotive Advertising Luxury Brands November '07 (Persons 18-54 Cross Platform Reach)
% of panel reached
Source: IMMI, June 2008
Of the panel reached by radio, 9.1% were a unique audience not already exposed to the television campaign. In other words, the true reach of the luxury car ad campaign beyond the TV buy was increased 9.1% by their radio campaign.
In another example, when a particular cable network advertised on television only In an ad campaign for a new cable television series, they reached 52.9% of the panel. This network was able to reach an additional 14.4% of viewers by effectively using radio and in-theatre advertising. Overall, the use of multiple platforms enabled this campaign to reach 67.3% of the panel.
Selected Cable Show Reach by Platform Combination
% of Panel Reached
TV & Radio
TV & Theatre
Source: IMMI, June 2008
In addition, IMMI consolidated both ad exposure and conversion (i.e. consuming what the ad was promoting) for close to 100 television and movie campaigns. Looking at 13 prime time television shows in the 2006-2007 season on the four major networks that used both television and radio advertising as part of their campaign, nine shows ran campaigns with a large enough multi-platform presence to meet the minimum number of net impressions required for study inclusion. Of these, six showed significant conversion results.
(Conversion is the percentage of panel members who were exposed to ads for the show, then watched the show.)
In each case studied, the data showed that exposure on television-only drives less of the target behavior than exposure on another platform in addition to television. Because the result is consistent across the board, the report concludes that there is value in constructing multiple platform campaigns that goes beyond simply maximizing reach.
For more information about IMMI, including access to the PDF file, please visit here.