. >> fred silverman who was running programming at cbs said, we're going to get rid of the shows thatre most highly rated and replace them with shows that they thought would be more appealing to that younger audience. >> they change the face of television. >> my name is norman lear. >> until 1971 he was a very successful if largely unheralded producer/writer in hollywood. but then he burst upon the public consciousness when he took on bigotry with his "all in the family." >> norman lear and bud yorkin created iconic shows. >> they revolutionized not only cbs but all of american television. >> our world is coming crumbling down, the coons are coming. >> to use language like that on tv was just unheard of it. but it really captured a certain moment. >> archie, 12% of the population is black. there should be a lot of black families living out here. >> yeah, this is only a beginning but i think it's wonderful. >> well, let's see how wonderful it is when the watermelon rinds come flying out the window. >> it scared me when i saw "all in the family," i thought they better be careful. >> the