Poldark (9 p.m., UNC-TV) – In the two-hour season finale, events spiral out of control when Verity makes her move. Also, an epidemic leads to tragedy, and a shipwreck proves to be a blessing and a curse.
Also on . . .
NC Bookwatch (Noon, UNC-TV) – Douglas McCullough talks about “Sea of Greed.”
Welcome to Sweden (8 p.m., NBC) – Bruce becomes friends with an American personal trainer who also moved to Sweden for a woman. At 8:30, Bruce meets up with actor Jack Black to show him around the city, but things take a turn when Bruce is abducted by masked men.
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Bachelor in Paradise (8 p.m., ABC) – Can we just pretend this isn’t happening?
The Last Ship (9 p.m., TNT) – While trying to piece together Dr. Hunter’s lost formula, Rachel deals with the fact that her sworn enemy is on board the ship.
Humans (9 p.m., AMC) – Laura and Mattie’s relationship reaches a breaking point, and Karen decides to tell Pete the truth.
Who Do You Think You Are? (9 p.m., TLC) – Author J.K. Rowling investigates her family history.
Ballers (10 p.m., HBO) – Spencer decides to take the hit for Vernon, while Jason is unsettled by his mother’s new boyfriend.