By the gay liberationist making “coming out” public they helped mobilize people to live full-time as a homosexual, they no longer had to live in secret.
Following mentions by Johnny Carson on his popular TV show, and Bob Hope on TV as well, the adult film Deep Throat achieved major box office success, despite being rudimentary by mainstream standards.
In 1973, the far-more-accomplished, but still low budget adult film, The Devil in Miss Jones, was the seventh most successful film of the year, and was well received by major media, including a favorable review by film critic Roger Ebert.
A third, more indirect cause was the large number of children born in the 1940s and early 1950s all over the western world—the 'Baby Boom Generation'--many of whom would grow up in relatively prosperous and safe conditions, within a middle class on the rise and with better access to education and entertainment than ever before.
By their demographic weight and their social and educational background they came to trigger a shift in society towards more permissive and informalized attitudes.
TV, the new mass communication device of the age, along with other media outlets such as radio and magazines, could broadcast information in a matter of seconds to millions of people, while only a few wealthy people would control what millions could watch.