It’s a mostly quiet Monday, but one of Britain’s most fun mysteries returns, along with a pair of Netflix documentary debuts. Meanwhile, the CW has your superhero fix.

JASON’S PICK:
Agatha Raisin and the Haunted House [Acorn TV]
Turn up the quaintly quirky as Agatha Raisin, the hot messiest of all UK crime solvers (and they can be a neurotic bunch to begin with) tackles a new case. There will also most certainly be an unwise flirtation in the mix, because that’s how Agatha do. I’m at a loss to explain the appeal of this series, but can only offer that it’s a lot of fun.

BRAD’S PICK:
Black Lightning [The CW, 9p]
The situation in Freeland is deteriorating quickly and Jefferson and Lynn have to adapt even quicker to stay ahead of the madness.

ALSO ON TAP TONIGHT:

• Netflix unveils a pair of timely and provocative documentaries today. A 3 Minute Hug looks into the whirlwind of emotions flying around as families separated by the Trump border policy are briefly reunited. If you are looking for a quicker-bite, lighter-fare doc, Little Miss Sumo chronicles a 20-year-old Japanese woman who tries to break into the male-dominated world of Sumo wrestling.
• Over on Cooking Channel, the eleventh season of The Best Thing I Ever Ate returns with Wolfgang Puck, Duff Goldman, and Alex Guarnaschelli sharing some favorite island treats.
• Can someone end the national nightmare that is Sean Spicer’s run on Dancing with the Stars? I mean, seriously, this is some Sanjaya level nonsense. In any case, there’s a new episode tonight on ABC.