Antiques Roadshow (US)
Based on the popular BBC series running since 1979, the PBS Antiques Roadshow combines history with discovery. Each year, the show visits a handful of cities to appraise items brought in by viewers. Are these items worth a lot of money, more than the visitors expect? To be fair, this concept has been copied again since, with East Tennessee Public Television's Treasures In Your Attic, but WGBH/Boston, always the pioneer PBS station, will say their derivative came first.