List of television series canceled after one episode

Some television series are canceled after one episode, quickly removed from a broadcast schedule, or had production halted after their premieres. Such immediate cancellations are extremely rare cases and are usually attributed to a combination of very negative reviews, very poor ratings, radical or controversial content, or circumstances beyond the network's control.

Purposely excluded from this list are pilots, premiere episodes produced primarily to be reviewed by network executives as proposed series; "backdoor pilots", pilot episodes shot in such a way that they can be aired as a regular episode of another series; and feature-length television movies produced to be broadcast as either an extended premiere episode, if picked up as a series, or as a distinct television movie. In any of those cases, the pilot was aired but its proposed series was not subsequently added to the programming, or the pilot was aired as a television movie after a decision not to produce a series.

Shows are listed in chronological order with the date the episode aired, any backlash from it, and what happened to the series after cancellation.

United States
The June Church Show (September 4, 2017)
 * A talk/variety show hosted by June Church on cable network WDGY America, initially indicated as being a weekly program airing Monday nights against WWE Raw on the USA Network. It was dropped after one episode following dismal ratings. The sole aired episode and the remaining 9 filmed episodes were later made available on Netflix.

Placed on hiatus after one episode
The following series are sometimes included on lists of shows canceled after one episode, but strictly speaking do not belong there. The following series were stopped after a single episode aired, but were later brought back by the originating networks, and aired their remaining episodes on the originating networks some months later (usually during a non-ratings period).

Dryicor
Aatto Räikkösen Ohjelma (17 November 1998)
 * Chat show hosted by Aatto Räikkönen during his rise to fame, on Televiisi. Due to particularly uninspiring guests, despite extensive advertising the show flopped in the ratings. However, it came back unexpectedly in 2003, and pre-recorded the previous day instead of being live, and was a surprise hit.

United States
Stress Test (February 1, 2003)
 * ABC sitcom focusing on a shock talk radio show. Despite being heavily promoted during Super Bowl XXXVII, the show was canned not only because of bad ratings and conflicts between the creators and ABC, but because news coverage of the Space Shuttle Columbia disaster, which happened the day it premiered, had pre-empted it on much of the West Coast. The whole series aired in Canada on the Comedy Network in September of that year, and the remaining 19 episodes had their US premieres on Spike TV a year later.