The Connors (8 p.m., ABC) - An email from the school banning certain Halloween costumes (including Mark’s) sparks an argument between Dan and Darlene.
This Is Us (9 p.m., NBC) - Struggling with Toby’s depression, Kate seeks Rebecca’s advice. Meanwhile, Randall spends time with Kevin, who is obsessing about Jack’s past.
The Rookie (10 p.m., ABC) - After Nolan and Talia lose control of a crime scene, they begin to debate whether people are fundamentally good or bad.
Frontline: The Facebook Dilemma (10 p.m., PBS / UNC) - We get the second part of the two-part Frontline series about the impact of the social media platform on society and democracy.