American Experience

TV's most-watched history series brings to life the compelling stories from our past that inform our understanding of the world today.

Overview Credits Watch Reviews Seasons Images Videos Recommendations Similar

Created By
Status	Returning Series
Original Name	American Experience
First Air Date	October 4, 1988
Last Air Date	August 26, 2025
Seasons	38
Episodes	397
Episode Runtime	55min
Language	English
Original Language	English
Production Countries	United States of America
Production Companies	GBH
Networks	PBS

S37E04

Clearing the Air: The War on Smog

A chronicle of how Los Angeles' devastating smog problem in the 1940s and 50s led to the creation of the Environmental Protection Agency (EPA) and the Clean Air Act.

View Episodes