What to Watch on Tuesday: Domestic terrorism in ‘Oklahoma City’ doc

Oklahoma City (9 p.m., UNC-TV) - This “American Experience” documentary examines the extremist militia movement that led to the worst domestic terrorist attack in American history: the 1995 bombing of the Alfred P. Murrah Federal Building by Timothy McVeigh in Oklahoma City.

Also on tonight . . .

This is Us (9 p.m., NBC) – Toby throws a wrench in Kate’s weight-loss journey, and Randall struggles to accept his father’s failing health.

Bull (9 p.m., CBS) – Bull helps a professional video game player who has been accused of intentionally losing a championship game.

Being Mary Jane (10 p.m., BET) – Mary Jane’s new position as web correspondent fuels her rivalry with Justin as she pursues the story of a teen beaten for wearing a skirt.

Detroiters (10:30 p.m., Comedy Central) – A new series about Detroit ad men. In the opener, they try to score a campaign with Chrysler.