. ♪ ♪ >> reporter: author ronald brownsteen has borrowed that title for his book, and by the tim -- about the cultural renaissance that really redefined the movie, music and tell vacation i television industries in l.a. >> reporter: it was when a young director stephen spielberg was filming jaws. a forerunner of movies laden with special effects and at a time where tv shows were addressing social issues. >> reporter: mash. >> they can have mine. i would be glad to keep my legs crossed until after the war. >> reporter: the anti-war movement. >> i would like to know why, the last associate producer before me made $50 a week more than i do. >> oh, because he was a man. >> reporter: on "mary tyler moore" the role of women and almost everything controversial on "all in the family". >> everypicture i have seen of god is white. >> maybe you were looking at the negative. >> reporter: together those three shows made saturday night on cbs sometimes called the greatest night on television. ♪ ♪ ♪ ♪ and in 1974, new artists like linda ronstadt and the eagles were releasing break-out records. ♪ ♪ ♪ ♪ >