Crouching Tiger, Hidden Dragon | The Persuaders! | The Hidden Cameras | hidden camera | hidden | The Hidden Hitler | Hidden Valley Raceway | Hidden Markov model | Hidden Empire | Hidden City | Tim and the Hidden People | The Stranger in the Mirror: Dissociation – The Hidden Epidemic | The Hidden Land | The Hidden Fortress | Star Wars: Rebel Assault II: The Hidden Empire | Local hidden variable theory | Legends of the Hidden Temple | Hidden Words | Hidden Terrors | Hidden Talent | Hidden surface determination | Hidden Stash II: The Kream of the Krop | Hidden Stash III | Hidden Stash | Hidden Passions | hidden Markov model | Hidden in Plain View | Hidden in America | Hidden Fuhrer: Debating the Enigma of Hitler's Sexuality | Hidden Colors |
The title of the play is derived from The Hidden Persuaders by media theorist Vance Packard and is partially an attempt to introduce some of the themes of his work into the series.
In a recorded segment, Derren presents a "potted history" of subliminal techniques, including their purported use by James Vicary to sell refreshments in United States cinemas, and inclusion in Vance Packard's book The Hidden Persuaders.