 From 1949 to 1953 the Shamrock hosted a network radio program called "Saturday at the Shamrock" carried by the American Broadcasting Company, then the only nationally broadcast scripted radio program produced outside New York or Los Angeles.However the Shamrock soon began experiencing persistent problems with occupancy rates and was seldom if ever full.McCarthy had spent lavishly, then borrowed heavily against his assets (including the hotel) to leverage a series of risky investments and his cash reserves quickly dwindled.