Amy Poehler’s brother joins NBC lineup

Extant

Wednesday at 9 p.m. on CBS

Steven Spielberg’s latest drama stars Halle Berry as astronaut Molly Woods, who mysteriously becomes pregnant during a 13-month solo mission in space. As she tries to reconnect with her husband (Goran Visnjic) and son (Pierce Gagnon), her experiences in space lead to events that will ultimately change the course of human history.

Welcome to Sweden

Thursday at 9 p.m. on NBC

Greg Poehler, brother of Amy, created and stars in this semi-autobiographical comedy as Bruce, a successful money manager to the stars who agrees to move to Stockholm with his Swedish girlfriend. Originally aired in Sweden (85 percent is in English, the rest subtitled), the comedy features cameos by Amy Poehler and Will Ferrell.

The Strain

Sunday at 10 p.m. on FX

This thriller from director Guillermo del Toro stars Corey Stoll (“House of Cards”) as Dr. Ephraim Goodweather, the head of the Center for Disease Control in New York City. When a mysterious viral outbreak with hallmarks of an ancient and evil strain of vampirism hits New York, Eph and his team are called to wage war to save humanity.