The popular curiosity show “Stuff You Should Know,” hosted by Josh Clark and Chuck Bryant, surpasses the three billion download mark, according to iHeartPodcasts. The program was launched by Clark and Bryant in April 2008 to explore a variety of topics such as science, history, pop culture, conspiracy theories and more. Clark says, “Chuck and I started this series with a passion for curiosity and had no expectation of ever being a leading podcast. It’s incredible to reflect on the last 14 years and see how much we’ve grown as creators alongside our listeners. We’re immensely grateful to our fans and iHeartMedia in helping us reach this incredible milestone, and it’s energizing and motivating to think about the show’s future success.”