GREAT! Mystery ·

Diagnosis Murder

Thursday 22 October 2026, 16:00 – 17:00 UK time

Sea No Evil: Dr Sloan agrees to investigate when a lifeguard is blamed for the death of a reporter. Can Mark help the lifeguard's aunt prove his innocence?

Upcoming showings

Other scheduled episodes, repeats and reruns across all channels. All times are UK time.

RTÉ One HD

Diagnosis Murder

Tuesday 20 October 2026, 11:15 – 12:10

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RTÉ One +1

Diagnosis Murder

Tuesday 20 October 2026, 12:15 – 13:10

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GREAT! Mystery

Diagnosis Murder

Tuesday 20 October 2026, 15:00 – 16:00

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GREAT! Mystery

Diagnosis Murder

Tuesday 20 October 2026, 16:00 – 17:00

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GREAT! Mystery +1

Diagnosis Murder

Tuesday 20 October 2026, 16:00 – 17:00

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GREAT! Mystery +1

Diagnosis Murder

Tuesday 20 October 2026, 17:00 – 18:00

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GREAT! Mystery

Diagnosis Murder

Wednesday 21 October 2026, 15:00 – 16:00

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GREAT! Mystery

Diagnosis Murder

Wednesday 21 October 2026, 16:00 – 17:00

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GREAT! Mystery +1

Diagnosis Murder

Wednesday 21 October 2026, 16:00 – 17:00

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GREAT! Mystery +1

Diagnosis Murder

Wednesday 21 October 2026, 17:00 – 18:00

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GREAT! Mystery

Diagnosis Murder

Thursday 22 October 2026, 15:00 – 16:00

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GREAT! Mystery +1

Diagnosis Murder

Thursday 22 October 2026, 16:00 – 17:00

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GREAT! Mystery +1

Diagnosis Murder

Thursday 22 October 2026, 17:00 – 18:00

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RTÉ One HD

Diagnosis Murder

Friday 23 October 2026, 11:15 – 12:10

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RTÉ One +1

Diagnosis Murder

Friday 23 October 2026, 12:15 – 13:10

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GREAT! Mystery

Diagnosis Murder

Friday 23 October 2026, 15:00 – 16:00

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GREAT! Mystery

Diagnosis Murder

Friday 23 October 2026, 16:00 – 17:00

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GREAT! Mystery +1

Diagnosis Murder

Friday 23 October 2026, 16:00 – 17:00

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GREAT! Mystery +1

Diagnosis Murder

Friday 23 October 2026, 17:00 – 18:00

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GREAT! Mystery

Diagnosis Murder

Sunday 25 October 2026, 03:00 – 03:50

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