Sometimes the performances had controversial topics, like the Vietnam War, population and many social issues. CBS, who broadcast the show, sometimes censored it, taking parts out that a large number of people might disagree with. They warned the brothers about presenting things that might cause upset to viewers. The Smotherses and their staff, though, believed it was important to comment about such things. The issues mattered to them, and were affecting people around the United States and the world.