SMOTHERS BROTHERS : A FREE FORM INTERVIEW At  the time of this interview (1975) the Smothers brothers were one of the biggest comedy acts in the country.   A few years earlier they had had an extremely popular but politically controversial TV show that, through the use of satire, took on Nixon, the Vietnam War and racism.  Due to this controversy they were eventually taken off the air and were considered—at least in mid America—pretty hip. Today they are retired and pretty much forgotten but back then,…