The lady Eve

Sandra Oh, sorely missed on “Grey’s Anatomy,” scrubs in as an MI5 security officer hot on the trail of an eccentric assassin in the new series “Killing Eve,” from “Fleabag” creator/star Phoebe Waller-Bridge. Oh brings the same blend of determination and exasperation that made her Dr. Christina Yang the heart and soul of “Grey’s.” Waller-Bridge’s killer dialogue serves Oh and her opponent, Jodie Comer, well.

7 p.m. Sun., BBC America

She’s got the beat

In an effort to counter a ratings slide, “The Tonight Show Starring Jimmy Fallon” is tinkering more and more with its format. Its latest experiment: a guest co-host. Cardi B has been chosen to fill that role for one night — and with good reason. Her appearance on the show this past December has attracted more than 16 million viewers online.

10:35 p.m. Mon., KARE, Ch. 11

On the road again

One of the reasons “America Inside Out With Katie Couric” works is that its host isn’t afraid to ask naive questions, a trait too many of her male counterparts are too cocky to adapt. Her approach is effective in the series premiere, which looks at the future of statues and schools that commemorate Confederacy leaders, as well as next week’s focus on how Muslims are being treated in this country. That episode includes a short feature on Dr. Ayaz Virji, a physician in Dawson, Minn.

9 p.m. Wed., National Geographic

Neal Justin