Investigation Discovery TV Guide — Sunday, 19 July 2026

Browse the full Investigation Discovery TV guide for Sunday, 19 July 2026. 23 programmes listed , including 5 tonight. US listings updated daily — scroll down to tonight's highlights or use the day tabs above to browse the weekly schedule.

Early Morning

00:00 1h

Married with Secrets

S1 · E3 · Yes, Master. Documentary

Yes, Master.

A twisted BDSM master gone terribly wrong is revealed when a promising kindergarten teacher mysteriously disappears, which shocks her family.

01:00 1h

Married with Secrets

S1 · E1 · Dr. Deception Documentary

Dr. Deception

A wife surprisingly encounters her husband's other wife after he becomes the victim of a hit-and-run, which leads to her being introduced to his double life.

02:00 1h

Hitchhiking Horror

Documentary Special

When 21-year-old Melody Lopez vanishes during a cross-country trip with her boyfriend, her father traces her last known location to a remote Ontario cabin.

03:00 1h

Married with Secrets

S1 · E3 · Yes, Master. Documentary

Yes, Master.

A twisted BDSM master gone terribly wrong is revealed when a promising kindergarten teacher mysteriously disappears, which shocks her family.

04:00 1h

Married with Secrets

S1 · E8 · The Mastermind Documentary

The Mastermind

Detectives search for a thief who has stolen expensive yachts, but they later encounter a calm man who has been connected to more than just stealing a boat.

05:00 1h

Your Worst Nightmare

S4 · E4 · He Seems Perfect Drama

He Seems Perfect

An up-and-coming New York fashion designer named Jenae Aragosa falls in love with a bartender named Trevor Frederick, but a dark side of Trevor reveals itself.

Morning

06:00 1h

Your Worst Nightmare

S4 · E8 · He's Coming for Me Drama

He's Coming for Me

When a serial killer goes on the loose in Arlington, Texas, 22-year-old Adriane Fields suspects that she's the killer's next target.

07:00 1h

Murder by Numbers

S2 · E8 · Rampage Other

Rampage

A series of similar murders in California give police trouble, but an analysis of ballistics, surveillance and a bloody cell phone lead them to the criminals.

08:00 1h

Murder by Numbers

S2 · E2 · The Eastside Killer Other

The Eastside Killer

While a predator preys on young women in Bellevue, Wash., leaving their bodies in sadistic poses, the police work hard to draw a connection.

09:00 1h

Murder by Numbers

S2 · E3 · You Could Be Next Other

You Could Be Next

When the wife of a sheriff in Alexandria, Va., is shot to death on the doorstep of her home, theories of a serial killer spread throughout the community.

10:00 1h

Murder by Numbers

S2 · E1 · Monster Among Us Other

Monster Among Us

When a sadistic killer leaves three women raped, murdered and posed on the streets of the city of Baton Rouge, La., one brave woman survives an attack.

11:00 1h

The Serial Killer's Apprentice

Part 1 Documentary Special

Part 1

Dr. Katherine Ramsland interviews Elmer Wayne Henley Jr. about the 1973 Houston Mass Murders, to unravel his journey from manipulated teen to convicted killer.

Daytime

12:00 1h

The Serial Killer's Apprentice

Part 2 Documentary Special

Part 2

Dr. Katherine Ramsland interviews Elmer Wayne Henley about the 1973 Houston Mass Murders, to unravel his journey from manipulated teen to convicted killer.

13:00 1h

Diabolical

S2 · E19 · Murder is No Accident Drama

Murder is No Accident

After 34-year-old Cynthia Roth accidentally drowns in Washington's Lake Sammamish on July 23, 1991, her husband Randy claimed that their raft had flipped over.

14:00 1h

Diabolical

S2 · E11 · Mother of All Lies Drama

Mother of All Lies

Detective Scott Sanderson finds himself solving one of the strangest cases of his career while searching for a missing mother and her newborn baby.

15:00 1h

Diabolical

S2 · E12 · Someone's Lying Drama

Someone's Lying

A Virginia hunter stumbles upon a woman with an execution-style gunshot wound to the back of her head and detectives uncover a twisted web of lies and crimes.

16:00 1h

Diabolical

S2 · E13 · Recording Evil Drama

Recording Evil

When Gina Coccia comes home and discovers the bodies of her girlfriend Patricia Lynn Steller and her nephew, the investigation reveals an act of betrayal.

17:00 1h

Evil Lives Here: Shadows of Death

S3 · E11 · The Bad Boys True

The Bad Boys

In 1992, when Jennifer Drury learns about her father's brutal, cold-blooded murder, her first thought is that the cult has something to do with it.

Evening

18:00 1h

Evil Lives Here: Shadows of Death

S3 · E8 · A Deal with the Devil True

A Deal with the Devil

When a beloved young mother vanishes in 2016, her family is desperate for answers and makes a deal with the devil.

19:00 1h

Evil Lives Here: Shadows of Death

S3 · E6 · Garden of Horrors True

Garden of Horrors

In 2019, when a beloved father vanishes, his home appears spotless, but there's something odd about the flower garden.

20:00 1h

Evil Lives Here: Shadows of Death

S3 · E2 · The Wicked Pair True

The Wicked Pair

When five people vanish in 1993, police officers have zero leads; seven years later, someone connected to the case starts to talk.

21:00 1h

People Magazine Investigates

S8 · E5 · Where is Kristin Smart? True

Where is Kristin Smart?

Kristin Smart was a freshman at California Polytechnic State University, who disappeared on May 25, 1996, and Paul Flores was a longtime person of interest.

22:00 2h

People Magazine Investigates: The University of Cosmic Intelligence Cult

Documentary Special

Rashad Jamal's University of Cosmic Intelligence spreads fast but when some of his followers vanish, fear grows that devotion has turned deadly.

Early Morning

Morning

Daytime

Evening

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