King on the Run
The English Civil War ran for nine seasons, but by the end they were scraping the bottom of the barrel for new plot lines. The main villain (or hero, depending on your point of view) had been executed in the season seven finale, and the English were so sick and tired of fighting each other they were willing to settle down and be puritans if that was the fashionable thing to be. But it was still getting good ratings, so…