In January 2014, Grey launched the podcast Hello Internet along with co-host Brady Haran, another educational YouTuber and online content creator. The podcast peaked as the No. 1 iTunes podcast in United Kingdom, United States, Germany, Canada, and Australia in February 2014. The Guardian included the podcast among its 50 best of 2016, naming episode 66 ("A Classic Episode") its episode of the year. The paper described the podcast as having "in-depth debates and banter that is actually amusing." Grey reported a podcast listenership of approximately "a quarter million" downloads per episode as of September 2015.