Great! Mystery TV Guide

TV GUIDE

Thursday, 21 May 2026

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Quick jump Tonight's highlights

Browse the full Great! Mystery TV guide for Thursday, 21 May 2026. 32 programmes listed , including 8 tonight. UK listings updated daily — scroll down to tonight's highlights or use the day tabs above to browse the weekly schedule.

Early Morning

00:51 5m

Good News on GREAT!

An uplifting round-up of good news stories

An uplifting round-up of good news stories from the UK and around the world.

00:56 54m

Garage Sale Mysteries: A Case of Murder

Film

Thriller, starring Lori Loughlin

After buying an old tape recorder at a sale, sleuth Jennifer Shannon discovers that it includes the sound of a man pleading for his life. Thriller, starring Lori Loughlin, Sarah Strange and Steve Bacic

01:50 1h 30m

Dispatch

Film

Thriller, starring Fiona Gubelmann

A police 911 operator is fired after mistaking a real murder for a prank call, and feeling guilty for allowing the crime to happen, she sets out to find the killer herself before he or she strikes again. Thriller, starring Fiona Gubelmann, Scott Bailey and John Lee Ames

★ Cast & Info

03:20 1h 30m

A Lover Betrayed

Thriller, TV Movie Film ★ 4.4

Thriller, starring Jamie Luner

A Lover Betrayed

★ Cast & Info

04:50 10m

Good News on GREAT! Extra

An uplifting round-up of good news stories

An uplifting round-up of good news stories from the UK and around the world

05:00 30m

Teleshopping

Home shopping

A chance to buy goods from the comfort of home

05:30 30m

Teleshopping

Home shopping

A chance to buy goods from the comfort of home

Morning

06:00 30m

Teleshopping

Home shopping

A chance to buy goods from the comfort of home

06:30 30m

Teleshopping

Home shopping

A chance to buy goods from the comfort of home

07:00 30m

Teleshopping

Home shopping

A chance to buy goods from the comfort of home

07:30 30m

Teleshopping

Home shopping

A chance to buy goods from the comfort of home

08:00 10m

Good News on GREAT! Extra

An uplifting round-up of good news stories

An uplifting round-up of good news stories from the UK and around the world

08:10 56m

Garage Sale Mysteries: Picture a Murder

Mystery, TV Movie Film ★ 6.0

Mystery, starring Lori Loughlin

Garage Sale Mysteries: Picture a Murder

★ Cast & Info

09:06 5m

Good News on GREAT!

An uplifting round-up of good news stories

An uplifting round-up of good news stories from the UK and around the world.

09:11 54m

Garage Sale Mysteries: Picture a Murder

Mystery, TV Movie Film ★ 6.0

Mystery, starring Lori Loughlin

Garage Sale Mysteries: Picture a Murder

★ Cast & Info

10:05 1h

In Plain Sight

S4 · E13 · Something Borrowed, Something Blew Up

Mary is forced to work on Brandi's wedding day

On the day of Brandi's wedding, maid of honour Mary is flown to Miami to protect a witness from hired mercenaries, and the mission leads the WitSec team into a dangerous situation. Meanwhile, the bride-to-be starts to get cold feet - will she go through with the ceremony? Drama, starring Mary McCormack and Nichole Hiltz

11:05 1h

Castle

S2 · E9 · Love Me Dead

An assistant district attorney is murdered

A supposedly morally upstanding assistant district attorney is thrown to his death from a building, prompting a murder case that involves numerous suspects because he was responsible for putting many criminals behind bars. When Castle and Beckett investigate possible leads, they learn the apparently infallible victim was running an escort business. Crime drama, starring Nathan Fillion and Stana Katic

Daytime

12:05 56m

Martha's Vineyard Mysteries: Riddled With Deceit

Film

Drama, starring Jesse Metcalfe

A former detective and Martha's Vineyard's medical examiner attempt to track down a brooch, thief and murderer. Drama, starring Jesse Metcalfe and Sarah Lind

13:01 5m

Good News on GREAT!

An uplifting round-up of good news stories

An uplifting round-up of good news stories from the UK and around the world.

13:06 54m

Martha's Vineyard Mysteries: Riddled With Deceit

Film

Drama, starring Jesse Metcalfe

A former detective and Martha's Vineyard's medical examiner attempt to track down a brooch, thief and murderer. Drama, starring Jesse Metcalfe and Sarah Lind

14:00 1h

Diagnosis Murder

S8 · E16 · Being of Sound Mind

Jesse and Amanda are targeted by a killer

Dr Sloan tries to protect Jesse and Amanda from a murderer determined to get his hands on a multi-million-dollar inheritance. Medical detective drama, starring Dick Van Dyke

15:00 1h

Diagnosis Murder

S8 · E17 · Dance of Danger

Dr Sloan investigates a stabbing

Dr Sloan helps a reporter whose dance partner, the source of one of her stories, has been fatally stabbed at a disco. Dick Van Dyke stars

16:00 1h

Murder, She Wrote

S10 · E5 · A Virtual Murder

Jessica witnesses a murder

Jessica is fascinated by a demonstration of a video game based on one of her books, but when she plays it, she apparently witnesses a real murder. Angela Lansbury stars

17:00 1h

Murder, She Wrote

S10 · E6 · Bloodlines

Guest starring Mickey Rooney and Tippi Hedren

Jessica's work on a new novel leads her to unravel the mystery behind the death of a friend, racehorse trainer Matt Cleveland. Guest starring Mickey Rooney and Tippi Hedren

Tonight's Highlights

18:00 1h

Sue Thomas: FBEye

S1 · E2 · Pilot - Part Two

Part two of two. Lucy gets a nasty shock

Part two of two. Sue is made a temporary member of the team, despite Myles Leland feeling the FBI is pandering to her, while Lucy is shocked to learn about his philandering behind her back

19:00 1h

Castle

S2 · E10 · One Man's Treasure

A murder is linked to corporate espionage

A man's body is found in the rubbish chute of his flat and when two people arrive to ID his body, it is revealed that one was his wife and the other his fiancee. Castle and Beckett peel back the layers of his double life to discover the woman he was engaged to is an expert in corporate espionage, leading them to investigate a recycling company using underhand tactics to learn its rival's secrets. Crime drama, starring Nathan Fillion

20:00 1h

Unforgettable

S4 · E11 · About Face

The death of a homeless man exposes a kidnapping and murder

The accidental death of a homeless man exposes a kidnapping and murder, leading Carrie and Al to investigate a construction company's ties to a multi-state crime spree

21:00 1h

In Plain Sight

S5 · E1 · The Anti-Social Network

A student has evidence that could bring down a secret society

Mary returns from maternity leave to find a new set of office dynamics, and her first case after her six-month break involves the protection of a student who has evidence that could bring down one of the most powerful secret societies in America. Drama, starring Mary McCormack

22:00 56m

Aurora Teagarden Mysteries: Til Death Do Us Part

TV Movie, Mystery, Crime Film ★ 7.4

Mystery, starring Candace Cameron Bure

Aurora Teagarden Mysteries: Til Death Do Us Part

★ Cast & Info

22:56 5m

Good News on GREAT!

An uplifting round-up of good news stories

An uplifting round-up of good news stories from the UK and around the world.

23:01 54m

Aurora Teagarden Mysteries: Til Death Do Us Part

TV Movie, Mystery, Crime Film ★ 7.4

Mystery, starring Candace Cameron Bure

Aurora Teagarden Mysteries: Til Death Do Us Part

★ Cast & Info

23:55 56m

Garage Sale Mysteries: Pandora Box Murders

Drama, Mystery, TV Movie Film ★ 6.3

Mystery, starring Lori Loughlin

Garage Sale Mysteries: Pandora Box Murders

★ Cast & Info