 Complete the following phrase:  , almost all of the 19792001 second series episodes are still in active rotation on a number of PBS stations. The only exception is the week-long Conflict series episodes 15211525, first aired during the week of November 711, 1983. The seriesstory arc covered the topics of war, bombs, and an arms race, and was created in response to the Invasion of Grenada, and the 