RadioLab Saturdays from 12-1 p.m. Hosted by Jad Abumrad, Robert Krulwich Radiolab is a show about curiosity. Where sound illuminates ideas, and the boundaries blur between science, philosophy, and human experience. Ways to ConnectWebsite Facebook Twitter Robert Krulwich To Retire From Radiolab In January By KOSU • Dec 6, 2019 Robert Krulwich, one of the hosts of Radiolab, has announced his retirement from the program, beginning in January. Krulwich has hosted the show with Jad Abumrad since 2005. KOSU's staff sends a fond farwell to Robert!