Patrick Schwarzenegger and Colin Firth star in “The Staircase”

• A new episode of true crime miniseries “The Staircase” explores the life of novelist Michael Peterson (Colin Firth), a man accused of murdering his wife, Kathleen (Toni Collette), who fell down a staircase. Shortly after her death, he stands trial for her murder. (Crave1 at 9:50, Crave4 at 11:50)