Search movies or series

Browse

Movies
TV-Series
Top Rated
Genres

Genres

Action
Adventure
Animation
Comedy
Crime
Documentary

About

About
FAQ
Privacy
Terms

123MVIESWatch Your Favorite Movies Online

Browse and discover movies and TV series — ratings, cast, trailers, and where to watch them legally on the services you already have.

This product uses the TMDB API but is not endorsed or certified by TMDB. Streaming availability data provided by JustWatch via TMDB.

Oíche Shamhna: An Ancient Mystery

Name: Oíche Shamhna: An Ancient Mystery
Genre: Documentary

20251h 39m / ep1 season2 episodesEnded

Documentary

Exploring mythology, archaeology and science, this series reveals Halloween’s ancient origins in Ireland.

First aired: 26 October 2025
Network: RTÉ One

Where to Watch

Region

No streaming, rental or purchase options are listed for Oíche Shamhna: An Ancient Mystery in United States right now. Try another region above — rights differ by territory.

Availability data for United States provided by JustWatch via TMDB. Listings can change without notice — check the provider before subscribing.

Seasons

Season 12 episodes · 2025

7.2

Prehistoric Planet

Oíche Shamhna: An Ancient Mystery (2025) | 123 Movies

Oíche Shamhna: An Ancient Mystery

More Like This

Mind Field

Lost Treasures of Egypt

Eli Roth's History of Horror

Cursed Films

How Do They Do It?

Earth at Night in Colour

History 101

Deadly Women

Top Gear

American Manhunt: Osama bin Laden

A History of Horror

Doctor Who Confidential

Welcome to Earth

A Real Bug's Life

Ghost Hunters International

Prehistoric Planet