"Saturday Night and Sunday Morning: The Gospel Roots of Rock and Soul" is a 6-part documentary series that explores the history and influence of gospel music on early rock and roll, soul and R&B music. This first episode examines the history and foundation of Black music beginning with the spirituals that were sung during the time of American slavery, and looks at how that music evolved into gospel music during the early 20th century with the help of innovators such as Thomas Dorsey, who is considered the "father of gospel music".