Even in E1S1 they are showing 1970s Soviet embassy with russian flag, the russian flag did come in to use until much later. The flag was red, do the producers know any of this. They talk about tensions with Reagan in 1983- no explanation why. In Poland the Solidarity was shaking the boots off the communists and Reagan was supporting them with nuclear threat against soviet union if they invaded Poland - none of the them on the show mention it.