It applied to curse words on the public airwaves and in movies. It applied to violence in movies. There could be violence, but not the level that has become common.
Today censorship is ubiquitous. It is everywhere. In the United States censorship is both imposed from above and flows from the bottom up. Censorship is imposed from above by, for example, TV and print media, Google, Facebook, Twitter, and by laws in 28 states prohibiting criticism and participation in boycotts of Israel and by President Trump's executive order preventing federal funding of educational institutions that permit criticisms of Israel. Censorship flows from the bottom up by, for example, people of protected races, genders, and sexual preference claiming to be offended.