What happened to Biography Specials?

What happened to Biography Specials? Those were by far the best specials, and you stopped making them completely. Seeing how many important figures participated in WW2, one Biography Special per week was needed to cover all the major personalities of the war. To say I am very disappointed you stopped making them is an understatement. The Great War channel at least never stopped making them, and had enough of other special episodes to keep the content “fresh” and educational.