TV SHOW

Oíche Shamhna: An Ancient Mystery

RTÉ One20251 Season

Documentary

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

—TMDB
Rate
Your ratingNew ratings contribute to the public average.
TV ratings leave your episode watch progress unchanged.
HELIX
SHOW STATUSEnded
Released
Oct 26, 2025
Status
Ended
Original Language
Irish
Seasons
1
Episodes
2
Episode Runtime
99 min
Languages
English, Irish

Watch Now CA

Streaming in Canada

No streaming subscription offers are listed for CA.

Availability by JustWatch via TMDB. Offers can change.

Episodes

Season 1
SeasonSeason 1 actions

0 of 0 episodes watched. Future and undated episodes are skipped when marking watched.

No episodes announced for this season.

More Like This

View all
Cursed Films
Eli Roth's History of Horror
The Walking Dead: Origins
Mind Field
Lost Treasures of Egypt
Earth at Night in Colour
History 101
Marvel's 616
Welcome to Earth
Deadly Women
Doctor Who Confidential
American Manhunt: Osama bin Laden

Tracking, favourites and personal ratings save to your signed-in web account, or the isolated preview. No viewing history is sent to TMDB.