Before the advent of social media, audiences had to rely on different means of communication to voice dissatisfaction with broadcast content such as archie bunker’s racist comments on the situation comedy all in the family in the 1970s. if you were upset, you

 write a letter to the editor of the local newspaper        

Explanation:

           In the present day, social media has given us a variety of platforms where we can share our views freely to the world.

          The various means of online social networking allows the audiences to show any likes and dislikes about any content they they have viewed on the media. People can express their views about nay news or events that they have encountered and can condemn or appreciate any actions of others.

          But before the arrival of social media, if an audience likes or dislikes any content, then they have depend on many means of communication to express their feelings and thoughts. People write a letter to the editor of a newspaper to express their views to the public or the society. And the editor publishes those letter in their newspapers so that people view's can reach the society.

Thus the answer is ---

write a letter to the editor of the local newspaper  

answer; randomized controlled trials;

answer; adolf hitler;