The Red Line. Four-week, eight-episode event series tells the stories of three Chicago families coping with the aftermath of a tragedy. Noah Wyle (ER) plays a teacher and father whose husband, an African American doctor, was killed by a white police officer (Noel Fisher, Shameless) who mistook him for a robber. Emayatzy Corinealdi plays an alderman candidate trying to unseat an entrenched incumbent by running on a platform that includes police reform. Producers include Selma director Ava DuVernay, Greg Berlanti, and Philadelphia’s Kevin Hooks. 8 p.m. Sunday, April 28, CBS.

Game of Thrones. You know all that singing and knighting and night-before-battle merriment last Sunday? I think that’s over. The longest episode of the six-episode season is expected to clock in at one hour, 22 minutes, after which I’m afraid the army of the dead might have new recruits. Also: If the Winterfell crypt turns out to be a safe space, my years on the TV night watch will have been wasted. 9 p.m. Sunday, April 28, HBO.

United Shades of America. Comedian W. Kamau Bell kicks off a new season of his Emmy-winning docu-series with a visit to Dallas and a look at megachurches. 10 p.m. Sunday, April 28, CNN.

Nature: American Spring Live. Three-night look at the science of spring kicks off with the promise of seeing the birth of a lamb on a Maine sheep farm. 8 p.m. Monday, April 29-Wednesday, May 1, WHYY12.

Ms. Fisher’s Modern Murder Mysteries. Fans of Australia’s 1920s-set Miss Fisher’s Murder Mysteries might want to check out the Acorn streaming service’s ’60s-set spinoff, which stars Geraldine Hakewill as the original Miss Fisher’s niece, Peregrine Fisher. Monday, April 28, Acorn.

The 100. The post-apocalyptic drama about youthful survivors trying to re-establish life on Earth launches its sixth season and has already been renewed for a seventh. Which means, I suppose, that it hasn’t run out of characters to kill. Yet. 9 p.m. Tuesday, April 30, CW.

Shetland. The fifth season of this addictive drama, which I first fell for on Netflix, is, like the fourth, exclusive in the U.S. to the streaming service. BritBox. Douglas Henshall stars as a police detective living and working on one of Scotland’s remote Shetland Islands. Tuesday, April 30, BritBox.

The Goldbergs. Mother’s Day comes a little early for Beverly Goldberg (Wendi McLendon-Covey) in an episode that will feature an interview with the real Beverly, mother to the show’s Jenkintown-raised creator, Adam F. Goldberg. 8 p.m. Wednesday, May 1, ABC.

iZombie. Fifth and final season premiere for the DC Comics book-inspired show about a brain-eating young woman (Rose McIver) who tries to use the powers that come with her unfortunate diet to help the police solve murders. 8 p.m. Thursday, May 2, CW.

Dead to Me. Christina Applegate and Linda Cardellini star in a dark new comedy from Malvern’s Adam McKay and Saturday Night Live’s Will Ferrell about two women who strike up an intense friendship after meeting at a grief-support group. Friday, May 3, Netflix.

The Essentials. Director Ava DuVernay joins host Ben Mankiewicz for the new season of the series about must-see classics for film lovers. First up of her picks: 1955′s Marty. 8 p.m. Saturday, May 4, TCM.