The podcast episodes provided cover various aspects of the development and history of professional sports leagues, including the rivalry between the established National Football League (NFL) and the upstart American Football League (AFL), as well as the origins of professional basketball and the formation of the NBA.

The episode 'The New York Jets Win Super Bowl III' explores the competition between the NFL and AFL, detailing how the Jets' upset victory in Super Bowl III proved the AFL's legitimacy and paved the way for the full merger of the two leagues.

The episode 'A Gym Teacher Invents Basketball' covers the establishment of professional basketball leagues, including the National Basketball League and the eventual formation of the NBA in 1949, which helped popularize the sport.