The Time Tunnel (1966)

The premise

Project Tic-Toc is a top-secret U.S. government effort to build an experimental time machine: the Time Tunnel, an elliptical passageway into other eras. The base is a vast underground complex in Arizona. Dr. Doug Phillips, Dr. Tony Newman, and Lt. General Heywood Kirk run the project, with specialists Dr. Raymond Swain and Dr. Ann MacGregor.

In the premiere, "Rendezvous with Yesterday," a skeptical senator threatens to cut the project's huge funding unless Tic-Toc can send someone through time and bring them back during his visit. Tony jumps into the Tunnel against orders. Doug follows to save him. Both get lost in time. The senator leaves the funding in place, and the series locks into its engine: Tony and Doug land in a new moment each week while the control-room team tries to find them, watch them, sometimes talk to them, and pull them to safety—or at least to the next stop.

The in-story "present" is 1968, two years ahead of the 1966–67 broadcast season. Early stops lean on famous historical crises; later hours mix in more speculative science-fiction premises. Episodes two through 23 open with Dick Tufeld's narration about two American scientists lost in past and future ages during America's greatest secret project.

How it handles time

The Time Tunnel is less a vehicle than a corridor. Sources describe time as a static continuum the machine can open like a passageway. Characters talk about seeing "the living past," and Tony tells another character that past and future are the same. Once Tony and Doug are stranded, the weekly rhythm is simple: they drop into a period, get captured or cornered, try to escape, and the control room transfers or assists them when it can.

Kirk, Swain, MacGregor, and the rest can locate the travelers in time and space, watch them on monitors, occasionally establish voice contact, and move people between eras. The Tunnel connects both ways: people other than Tony and Doug often get brought into the present. Whether the travelers themselves get home is covered in the spoiler section.

History is not locked. The travelers and staff learn that intrusion can bend past events to some extent. A few plots use historical research as a warning about what "will" happen if the pair stay on a collision course with the record—Billy the Kid's victims are the example Wikipedia cites. That is more adventure pressure than a hard law of causality.

Later episodes visit future settings and bring in alien figures, often in the metallic silver costumes familiar from other Irwin Allen shows of the era. The format stays anthology: a teaser of next week's landing at the end of most hours (with one noted teaser exception after episode three), heavy reuse of Fox period stock footage, limited guest costuming, and (after the larger pilot set) a single main Tunnel control-room set. Colbert and Darren are often shot separately from the control-room cast.

So the specialty question: does it stick to its own rules? Only loosely. The Tunnel-as-corridor image and the split between stranded heroes and watching staff stay consistent. How much history can change, and how precise the transfers are, shift with the needs of the hour. Treat it as portal-adventure logic, not a puzzle box.

What works

Darren and Colbert sell the buddy-in-peril chemistry that keeps a formula show hanging together. You always know who is the impulsive jumper and who is the project director trying to clean up the mess. Bissell, Zaremba, and Meriwether give the control room a steady face: worried monitors, urgent talk-back, another attempt to lock onto the signal.

Allen's production machine is the other draw. Fox period sets and stock footage (including tinted black-and-white Titanic shots) put Tony and Doug next to the Titanic, Pearl Harbor, Krakatoa, the Little Bighorn, the Alamo, and other textbook crises without a modern VFX budget. Prop computer modules reportedly came from a decommissioned U.S. Air Force SAGE system. The photographic special effects won an Emmy in 1967 for L.B. Abbott (Individual Achievements in Cinematography — Photographic Special Effects).

The theme, credited to Johnny Williams (John Williams), gives the show a punchy network-era identity. Soundtrack collectors later got GNP Crescendo album material and, in 2021, extensive episode-score CD sets from La-La Land Records. Episode music across the run is also credited to composers such as Lyn Murray, Leith Stevens, Paul Sawtell, Robert Drasnin, and Joseph Mullendore.

For time-travel TV history, the show matters beyond its own season. Wikipedia's Quantum Leap (1989) article lists The Time Tunnel among the inspirations Donald P. Bellisario drew on for that later premise. If you care where the "scientists lost in time, home base watching" template came from on American network TV, this is a primary text.

What doesn't

The hour is a loop of its own: capture, detention, escape, next landing. Across 30 episodes that cycle wears thin if you binge. Stock footage and reused Fox period dressing also show their seams; historical accuracy slips (in the premiere, Titanic Captain Smith is called "Malcolm" instead of Edward).

ABC canceled the show after one season. According to Wikipedia, the ratings were solid and ABC pointed to the show as "one of the few successes in a disastrous schedule," then dropped it in favor of The Legend of Custer, which itself was canceled after 17 low-rated episodes. You get adventure, not closure.

The time logic will not survive a hard stare. Continuity oddities sit in the record (see spoilers), and "history can bend a little" is a permission slip more than a rulebook. If you came for bootstrap paradoxes and closed loops, this is the wrong corridor.

Final score

Overall: 6/10. A lively Irwin Allen portal anthology with Emmy-winning effects and a clear ancestor line to later time-travel TV, held back by formula, stock-footage shortcuts, and a cancellation that leaves the arc unfinished.

Paradox Meter: 2/5. The Tunnel and the watching control room are vivid and steady; how far history can change, and how cleanly the transfers work, bend whenever the plot needs a new scrape.

If you liked this

1989 · Series

Quantum Leap

8/10Paradox 3/5

Read the review →

1985 · Film

Back to the Future

10/10Paradox 3/5

Read the review →

1986 · Film

Peggy Sue Got Married

7/10Paradox 2/5

Read the review →