HBO's Dune: Prophecy will delve into the Bene Gesserit ... and shaping the Sisterhood but fails to come to terms with HouseHarkonnen's fall from grace because of her great-grandfather, Bashar ...
Of course, if you're new to Prelude to Dune, you may want to read the original novels first. They are a bigger time commitment, as House Atreides and HouseHarkonnen eclipse 750 pages each ...