Masterpiece, Miss Scarlet and The Duke, Season 4

PBS Western Reserve (WNEO 45.1 / WEAO 49.1):

Sundays at 8 PM beginning Jan. 7
Mondays at 1 AM beginning Jan. 8

Fusion (WNEO 45.2 / WEAO 49.2):

Sundays at noon beginning Jan. 14

Go on the case with private eye Eliza Scarlet, Victorian England’s first-ever female sleuth, as she solves crimes — and sometimes flirts — with her partner and childhood friend, Detective Inspector William “The Duke” Wellington. 

This season, Eliza has taken over the business of Nash & Sons (not that he has any sons) and things are not going entirely smoothly, although help comes from some familiar sources. Outside of work, her relationship with The Duke builds toward a looming decision that will shape both of their lives.