Garth Marenghi's Darkplace is a British dark comedy show made for Channel 4 by Matthew Holness and Richard Ayoade. Following on from Garth Marenghi's Netherhead, which won the 2001 Perrier Awards, the show revolves around fictional horror author Garth Marenghi (played by Holness) and his publisher Dean Learner (played by Ayoade).
Darkplace is presented as a lost classic: a television series produced in the 1980s, though never broadcast at the time. The presentation features commentary from many of the "original" cast, where characters such as "Marenghi" and "Learner" reflect on making the show. Darkplace parodies numerous aspects of '80s low-budget television, including fashion, special effects and music, as well as the widespread practice of including commentary tracks on DVD releases of old films and television shows.
Darkplace was broadcast in a late-night timeslot, with very little advertising, and met with poor viewing figures. The show nonetheless built up a significant internet following, leading Channel 4 to swiftly repeat the series and produce a DVD release. It was also reported that Channel 4's Film Four had asked Holness and Ayoade to write a script for a movie version of their programme.
The show was later broadcast in the United States on the Sci-Fi Channel and Adult Swim.
The show will begin airing again on Adult Swim's DVR Theatre in July 2011 starting at 4:00 A.M.