Premieres Monday, April 21, 2025 at 8 p.m. on KPBS TV / PBS app + Encores Wednesday, April 23 at 7 p.m. and Sunday, April 27 at 4 p.m. on KPBS 2. ROADSHOW finds rare treasures at Maryland Zoo including 1973 Topps uncut card sheets, a ring collection, ca. 1970 and a 1967 Ram Kumar oil painting. Can you guess the top $180,000 treasure?