"Pilot” is a word most often associated with a person who flies a plane. It can be used as a verb meaning “to act as a guide to” or “to set the course of,” which makes sense with the airplane pilot theme.
"Pilot" originally comes from the Greek pedon, meaning “steering oar.” It has been used in English as a verb in the sense of guiding direction as far back as the 1510s. Around 1907, it became a noun meaning “one who flies an airplane.”
The phrase “pilot studies” is common in the field of research to determine the feasibility of a scientific theory.
Less clearly, it can also be used to describe the first episode of a TV series.
The OED's earliest example dates to a 1953 edition of Sponsor magazine (aimed at TV advertisers). “As an indication of new show costs, the pilot for ABC’s new Danny Thomas situation-comedy film came to a higher tab than I Love Lucy.”
Why are these TV episodes called "pilots"? It is another etymological mystery. I couldn't find agreement on an origin. They do seem to be designed “to set the course of” the series. They are a kind of “test flight” for the show's concept. They are similar to a “pilot study."
The TV industry has a "Pilot Season," which is the annual time for testing new show ideas. It traditionally was from January to April, but streaming services have disrupted this rhythm, producing pilots year-round. A pilot episode is a standalone sample for a potential series. networks use them to decide which ones get picked up for full seasons. Some of these pilots never get picked up, and that one episode is all there is of the concept, and they are never seen by the public.
Writers pitch ideas in summer, networks order scripts in fall, pilots are filmed in winter and executives review and choose which shows to greenlight by spring. These pilot episodes are often quite different from the rest of the series, as the writers are figuring out the concept.
Why are these TV episodes called "pilots"? It is another etymological mystery. I couldn't find agreement on an origin. They do seem to be designed “to set the course of” the series. They are a kind of “test flight” for the show's concept. They are similar to a “pilot study."
Watch the pilot for Seinfeld (a series I love), which was when the series was going to be called "The Seinfeld Chronicles," and you'll see many differences.
For example, the pilot features a waitress named Claire instead of Elaine Benes. Elaine was added later to balance the cast with a stronger female presence. Kramer’s name was originally “Kessler” due to legal concerns about using the real name of Larry David’s neighbor. The quirky traits that define Kramer were also less pronounced. George is more of a neurotic Woody Allen type in the pilot, rather than the Larry David-inspired character he becomes later. Instead of Monk’s Café, the gang hangs out at a generic luncheonette. The pilot leans heavily on Jerry’s stand-up routines to frame the story. It lacks the interwoven plotlines and ironic twists that later became signature to the show’s storytelling. The dialogue is slower, the humor more subdued, and the overall vibe more conventional than the sharp, self-aware rhythm that defined later episodes.
