Came across this paragraph in an article delving into the Republicans' use of market research:
"One of the [TV] 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."
According to this source, the Bush-Cheney campaign advertized 473 times on "Will & Grace" between Jan. 1st and November 2nd.
This info comes out of the Wisconsin Advertizing Project which analyzes political advertising and will be studied closely by operatives in both parties.