Stop the presses.(National Enquirer)

The Enquirer aims to become credible

A spokeswoman who looks suspiciously like Diane Sawyer stands inside the National Enquirer's Lantana newsroom reporting on the cover story in that week's issue.

It's part of a $50 million TV ad campaign designed to create credibility for the nation's top supermarket tabloid.

The 30-second spots start arriving in living rooms in 17 test markets this week, including South Florida. American Media, the parent of the Enquirer and Star tabloids, is rolling out the campaign to convince readers to pick up tabloids again.

The idea, according to David Pecker, the new CEO of American Media, is to reposition the Enquirer as a hardnews publication and the Star as a respectable celebrity-watching weekly. American Media is spending $25 million on each in the new campaign.

The Lantana-based media company also publishes the far-out …