Set in the mood ring and polyester era of the 1970s, the programme is a retro-hip situation comedy about an eclectic group of friends on the verge of adulthood. The group live in the suburbs of Wisconsin, where they yearn for independence amid the growing pains of becoming adults.

 
The fourth season of That '70s Show, an American television series, began September 25, 2001, and ended on May 21, 2002. It aired on Fox. The region 1 DVD was released on May 9, 2006. This season is set entirely in 1978.