This American Life

This American Life (Sunday, 1-2 p.m.)

From Wikipedia:

Each week's show has a theme, explored in several "acts." On occasion, an entire program will consist of a single act. Each act is produced by a combination of staff and freelance contributors. Programs usually begin with a short station identification by Glass who then introduces a segment related to the theme which precedes act one. The segment will then lead into the presentation of the theme for that week's show.

This American Life Website