The Simpsons Treehouse of Horror (8 p.m., Fox) – In this annual Halloween special episode, Sideshow Bob kills Bart. Also, radiation exposure gives Lisa, Bart and Milhouse superpowers.
Madam Secretary (8 p.m., CBS) – When Elizabeth disagrees with the president's response to tension with Russia, she is pushed out of the inner circle.
Blood & Oil (9 p.m., ABC) – Lacey officially joins the family business making Wick's shortcomings more glaring. Also, Wick learns that Hap may know more about the robbery than he's letting on.
Homeland (9 p.m., Showtime) – Carrie cannot find answers. Meanwhile, Saul and Allison run an operation.
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The Guilty (10 p.m., UNC-TV) – DCI Maggie Brand investigates a five-year-old case involving a boy who disappeared during a neighborhood cookout.