You are probably looking for the PBS site here pbs roadshow. They have actually "coined" that particular phrase. They have taken the roadshow to a whole new level by taking the old "in-person-town-to-town" traditional antique roadshow, making it entertaining, televising and marketing it.  They have even published the following book, which can be found in virtually any book store (sorry, but we do not sell it):

Based on the PBS show, this guide is Jam-packed with practical information, photos, and tips, this new primer offers an introductory guide to American antiques and collectibles. Illustrations. Has a 32-page full-color insert.

On the other hand, if you are just looking for general information on what antique roadshows are, please see this page on our site here.