Our pick of the best podcasts on Spotify, Apple Podcasts and more covering technology, culture, science, politics and new ideas Podcasts are now big business. In this post-Serial audio world, journalists, celebrities, academics and yes, anyone else who owns a mixing desk and a microphone, now has a regular show. The quality is generally very high but some efforts can still be hit and miss with dozens of podcasts popping up around the same themes or TV shows.