The podcast episodes provided include several examples of introductions and previews for new podcast series, which serve to set the stage and context for the content that will be covered.

For example, the Marketplace Morning Report episode introduces a new series called 'What Happened in Alabama?' that explores the host's family history and the trauma experienced by Black Americans. The Weight For It episode previews the premise of a new podcast where the host shares his lifelong struggles with weight, body image, and feeling invisible due to his size.

These types of introductory episodes are important for generating interest and setting expectations for listeners about the topics and themes that will be explored in the upcoming podcast content.