As of June 2026, Threshold is a Sci-Fi & Fantasy series that aired since 2005 with 1 season. Find out where to watch it below.
Threshold poster

Threshold

2005–2006 1 Season 13 Episodes Sci-Fi & Fantasy ⭐ 7 / 10

Not every great series makes it onto the major platforms, and Threshold is a reminder of why it is always worth looking beyond the obvious. Every episode is out there — TV Butler finds it for you instantly without the guesswork. A 7/10 rating from a real audience is the kind of signal that does not lie — this was worth people's time when it aired, and it is worth yours now. The challenge with shows that are not on the biggest platforms is simply knowing where to look, and that is exactly what TV Butler is built for. Search by title, find out which service has it in your country, and go from there. No app-switching, no guessing — just a direct path to watching.

Originally commissioned by CBS, Threshold quickly became exactly the kind of show that viewers rearrange their evenings for. Threshold was a science fiction drama television series that first aired on CBS in September 2005. Produced by Brannon Braga, David S. Goyer and David Heyman, the series focuses on a secret government project investigating the first contact with an extraterrestrial species. It aired in 2005–2006. The world-building is meticulous enough to sustain multiple rewatches, with details in early episodes that only make sense later in the run. It delivers reliably on what it promises, which is more than most of its competition manages.

Perfect for late-night viewing or a proper weekend binge. The kind of show that makes you feel the absence when it ends. Threshold sits in the corner of the genre where ideas and character work get equal attention — not all science fiction manages that balance, but this one does. The comparison to Debris makes sense in terms of ambition and approach, though Threshold develops its own identity quickly. Once you are in, you will want to talk about it, which is the mark of good science fiction. Start it and see.

or
TV Butler Pro app
🎩 TV Butler Pro — Free to Use
Search or tap a mood. Butler finds it, tracks it, remembers it — all for free.

📺 Where to Watch Threshold

Streaming availability varies by region. Use TV Butler below to find Threshold in your country instantly.

🎭 Cast of Threshold

Carla Gugino
Carla Gugino
Dr. Molly Anne Caffrey
Brian Van Holt
Brian Van Holt
Sean Cavennaugh
Brent Spiner
Brent Spiner
Dr. Nigel Fenway
Rob Benedict
Rob Benedict
Lucas Pegg
Peter Dinklage
Peter Dinklage
Arthur Ramsey
Charles S. Dutton
Charles S. Dutton
J.T. Baylock

🗂️ All Seasons of Threshold

1
Season 1
13 Episodes · 2005

📋 If You Like Threshold, Try These

Debris
2021
Falling Skies
2011
Project Blue Book
2019
Invasion
2005
Childhood's End
2015
Kolchak: The Night Stalker
1974

Never Lose Track of What to Watch

TV Butler Pro™ remembers every show you've watched and finds where to stream anything in seconds. Free to use — opens right in your browser.

🎩 Try TV Butler Pro™ Free
Added to your watchlist!