Premieres Monday, May 20, 2024 at 8 p.m. on KPBS TV / PBS App + Wednesday, May 22 at 7 p.m. and Sunday, May 26 at 4 p.m. on KPBS 2. Travel to all five cities of ROADSHOW's Season 28 Tour for never-before-seen appraisals, including a 1976 Mark Hamill-signed Star Wars poster, a 1979 Bob Ross landscape oil, and a 1973 Iditarod Race sled!