Finding the Smothers Brothers

In the late 1960s, “The Smothers Brothers Comedy Hour” shook up primetime television. But folk singer-turned-comedian Tom and Dick Smothers defied the powers that be, from the White House to CBS, until the network canceled its famous counterculture in 1969. Today, the brothers, now in their 80s, are back for a live tour. They chat with correspondent Lee Cowan about sibling rivalries, censorship and sharing a bond that outlived their detractors.