What's Making Us Happy (1970s Version)

We're traveling way back in time to 1971 -- when Richard Nixon was president, the Beatles were newly broken up, and Fiddler on the Roof was one of the biggest movies at the box office. Today in this encore episode, we’re revisiting a special edition of What's Making Us Happy, recommending pop culture from the 1970s – including Isaac Hayes’ Shaft soundtrack, Carol King’s Tapestry, Marvin Gaye’s…