The man Americans would come to know for a frog and a felt menagerie once made something far darker. In 1969, Jim Henson wrote and directed "The Cube," a surreal television play about a man who cannot escape a featureless white room — a work being rediscovered today as a remarkably prescient piece of television, as The Verge recently argued.
A man, a room, no way out
"The Cube" aired on NBC's anthology series "Experiment in Television" and runs about an hour. Its premise is simple and unnerving: a man finds himself in a white, cube-shaped room with doors he cannot use to leave. A stream of strangers comes and goes, offering conversation, riddles and contradictions, while the man's grip on what is real steadily loosens. By the end, an apparent escape curdles into a final twist suggesting he was never free at all. Henson co-wrote it with Jerry Juhl, his longtime collaborator.
The other Jim Henson
The piece is a window onto a side of Henson that his later fame obscured. Through the 1960s he made experimental short films well outside children's entertainment; his 1965 short "Time Piece," a frantic, near-wordless montage, earned an Academy Award nomination. Henson, by various accounts, thought of himself first as a filmmaker, with puppetry an avenue that happened to make him famous. "The Cube" belongs to that earlier, stranger ambition — philosophical, anxious and aimed squarely at adults.
Why it feels like 'Black Mirror'
What makes the play resonate now is how directly its preoccupations anticipate later science fiction. Its themes — a constructed reality, the impossibility of telling truth from illusion, the dread of being manipulated by unseen forces — are the bread and butter of "Black Mirror," "The Matrix" and a generation of paranoid, reality-bending storytelling. To encounter such ideas on American network television in 1969, years before they became a genre, is genuinely surprising.
Out of the archive
For decades, "The Cube" was easy to miss. It was broadcast only a couple of times around 1969–71 before slipping into obscurity, overshadowed by the Muppet empire that followed. Its reemergence — through archives and renewed critical attention — restores a small but striking chapter of television history: proof that the medium's appetite for the experimental and the unsettling runs deeper, and further back, than we often remember. For viewers raised on contemporary dystopias, Henson's white room is an oddly familiar place to find oneself.



