From today's New York Times:
Ty Pennington, a home improvement guru, seems to have made a connection with the public. More than a third of people who knew of him said his endorsement would help sell them a product, according to a new study by the NPD Group, a market research firm that examined the influence of 86 celebrity endorsements featured in ads last year.Incidentally, the celebrity with the highest negative purchase influence is Anna Nicole Smith. Sorry, TrimSpa.
In the study, no one had a higher positive "purchase influence" than Mr. Pennington.