WASHINGTON, Dec. 5 - After the 2000 presidential campaign, strategists for President Bush came to a startling realization: Democrats watch more television than Republicans. So by buying millions of dollars' worth of television advertising time, Republicans were spending their money on audiences that tended to vote Democratic.
What to do? With the luxury of four years until the next election, the Bush team examined voters' television-viewing habits and cross-referenced them with surveys of voters' political and lifestyle preferences.
..........
As the Bush team analyzed the data, stark differences between the viewing habits of Republicans and Democrats quickly emerged. The channels with the highest proportion of Democrats were Court TV and the Game Show Network; for Republicans, Speedvision and the Golf Channel.
.......
This year, before the Democrats had even selected a presidential candidate, the Bush strategists were considering advertising in movie theaters and health clubs. The data showed that Democrats were more likely to go to the movies than Republicans, so they dropped that idea. But it also showed that health clubs were a good way to reach Republicans and swing voters ages 18 to 34. So the campaign bought time on a cable channel that goes into health clubs across the country. It had reams of data that were not of immediate practical value but that helped the campaign understand its voters: for example, Porsche owners were more likely to be Republican; Volvo owners, Democratic.
.....
The data also yielded unexpected insights. One of the shows most popular with Republicans, especially Republican women ages 18 to 34, turned out to be "Will & Grace," the sitcom about gay life in New York. As a result, while Mr. Bush was shoring up his conservative credentials by supporting a constitutional amendment against same-sex marriage, his advertising team was buying time on a program that celebrates gay culture.
http://nytimes.com/2004/12/06/politics/06strategy.html