Mystery Science Theater 3000 (Johnsonverse)

Mystery Science Theater 3000 (abbreviated as MST3K) is an American television comedy series created by Joel Hodgson. The show premiered on KTMA-TV (now WUCW) in Minneapolis, Minnesota, on November 24, 1988. It has later aired on The Comedy Channel/Comedy Central for 19 seasons until its cancellation in 2008. In 2015, Hodgson led a crowdfunded revival of the series with 14 episodes in its eleventh season, which premiered on April 14, 2017. A 60-episode syndication package titled The Mystery Science Theater Hour was produced in 1993 and syndicated to stations in 1995. As of 2021, more than 400 episodes and a feature film have been produced as well as live tours.

The show initially starred Hodgson as Joel Robinson, a janitor trapped by two mad scientists ("The Mads") on the Earth-orbiting Satellite of Love, and forced to watch a series of B movies in order to monitor his reaction to them. To keep his sanity, Joel crafts sentient robot companions, including Tom Servo, Crow T. Robot, and Gypsy, to keep him company and help him humorously comment on each movie as it plays, a process known as riffing. Each two-hour episode would feature a single movie (often edited for time constraints), sometimes preceded by various old shorts and educational films, with Joel, Tom, and Crow watching in silhouette from a row of theater seats at the bottom of the screen. These "theater segments" were framed with interstitial sketches called "host segments". The show's cast changed over its duration; most notably, the character of Joel was replaced by Mike Nelson (played by Michael J. Nelson) halfway through the show's fifth season. Other cast members, most of whom were also writers for the show, include Trace Beaulieu, Josh Weinstein, Jim Mallon, Kevin Murphy, Frank Conniff, Mary Jo Pehl, Bill Corbett, Paul Chaplin, and Bridget Jones Nelson. In 2007, Nelson was replaced by stand-up comedian Robert Baril as Robert Warren, while Corbett (Crow) and Murphy (Tom Servo) were replaced by Chaplin and James Moore, respectively. The 2017 revival features a primarily new cast, including Jonah Ray who plays the new human test subject Jonah Heston, along with Felicia Day and Patton Oswalt as "The Mads" and Baron Vaughn, Hampton Yount, and Rebecca Hanson voicing Tom Servo, Crow T. Robot, and Gypsy, respectively.

MST3K's original run did not garner high viewership numbers. However, the show's popularity spread through online word-of-mouth by its fans known as "MSTies" or "Mysties" (who would remind others to "Keep circulating the tapes"), frequent repeats, syndication, and home media offerings produced by Rhino Entertainment. Currently, this popularity continues through Shout! Factory, who along with Hodgson, now own the rights to the show and supported the revived series. MST3K was listed as one of Time magazine's "100 Best TV Shows of All-TIME" in 2007, and TV Guide has noted MST3K as one of the top cult television shows. The show won a Peabody Award in 1993, was also nominated for two Emmy Awards in 1994 and 1995, and for the CableACE Award from 1992 to 1997. The show was considered highly influential, contributing towards the practice of social television, and former cast members launched similar projects based on the riffing of films, including The Film Crew, RiffTrax (ongoing as of 2021), and Cinematic Titanic. MST3K also brought to light several older movies that had fallen into obscurity or had received little or no public attention when originally released. Many of these films were subsequently identified as among the worst movies ever made, most notably Manos: The Hands of Fate.