The title of this episode refers to the hypothesis that holds when robots and other facsimiles of humans look and act almost like actual humans, this resemblance causes a response of revulsion among human observers. The "valley" is a dip in a proposed graph of the positivity of human reaction as a function of a robot's lifelikeness and explains why almost-human-looking robots scare people more than mechanical-looking robots.
Garcia: Oh my God, she was doomed. Like Emily Bronte doomed. Like Shakespeare doomed. Like red-shirted ensign in Star Trek doomed.
Reid: Isaac Asimov wrote, "In life, unlike chess, the game continues after checkmate."
Reid: Mildred Lisette Norman wrote, "Anything you cannot relinquish, when it has outlived its usefulness, possesses you. And in this materialistic age, a great many of us are possessed by our possessions."
This episode marks the first time Kirsten Vangsness appeared with red hair rather than blonde.
In the first part of this episode, Garcia makes a passing reference to Star Trek as an homage to guest star Jonathan Frakes, who played Commander William T. Riker in Star Trek: The Next Generation.
Garcia's line about Emily Bronte, Shakespeare, and Star Trek alluded to the tragic plotlines of Wuthering Heights and other works of Bronte, the many tragedies of William Shakespeare, and the propensity for violent deaths among red-uniformed crew members in the original Star Trek series episodes.
S 7 : Ep 23
Aired 5/16/12
S 7 : Ep 22
Aired 5/9/12
S 7 : Ep 21
Aired 5/2/12
S 7 : Ep 20
Aired 4/11/12
User Score: 9893
User Score: 1178
User Score: 933
User Score: 693
User Score: 222
User Score: 208
User Score: 169
User Score: 165
User Score: 112
User Score: 93