Question: When are episodes of South Park typically written and produced?
About the article "South Park", section "Abstract".

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"South Park" is an American animated television series created by Trey Parker and Matt Stone for Comedy Central.
The series originated from a pair of animated shorts titled "The Spirit of Christmas", and the first episode of "South Park" originally aired on August 13, 1997 on Comedy Central.
A total of episodes have aired so far during the series' run.
Comedy Central renewed "South Park" through 2016, bringing the show to 20 seasons.
Intended for mature audiences, the show has become famous for its crude language and dark, surreal humorthat lampoons a wide range of topics.
The story revolves around four boys—Stan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormick—and their bizarre adventures in and around the titular Colorado town.
The show remains Comedy Central's highest rated and is the network's second-longest-running program, behind "The Daily Show".
Each episode except the very first one, which was produced by cutout animation, is created with software that emulates the paper-cutout technique.
Parker and Stone continue to perform most of the voice acting, and Parker is the primary writer and director.
Except for the earliest seasons, each episode is typically written and produced during the week preceding its broadcast.
Each episode is assigned a production code number.
However, episodes sometimes air out of order, due to extra production-time requirements, scheduling considerations, or other reasons.
The later seasons of the show regularly consist of 14 episodes, with a run of seven episodes airing in spring and another seven episodes in autumn.
In 2013, Parker and Stone decided to cut the number of episodes per season from 14 to 10, beginning with the seventeenth season.
Besides the main series itself, originally-produced "South Park" segments have appeared in other works, such as sketches for talk shows and award ceremonies.
In 1999, "", a full-length musical film, debuted in theaters.
The eleventh season three-part "Imaginationland" story arc was also released as a combined direct-to-video film in 2008.
"South Park" seasons are regularly released on DVD, and starting with the twelfth season, on Blu-ray Disc.
Every episode has been made available for full-length streaming on the series' official website, South Park Studios, with the exception of three episodes: "Super Best Friends", "200", and "201", which were pulled from reruns and are only available exclusively on DVD.
Streaming is not available in all countries.
New episodes are added to the site the day following their debut, and an uncensored version is posted the following day.
The episode stays up for the remainder of the week, then taken down, and added to the site permanently three weeks later. 
South Park is an American adult animated sitcom created by Trey Parker and Matt Stone for the Comedy Central television network.
Intended for mature audiences, the show has become famous for its crude language and dark, surreal humor that satirizes a wide range of topics.
The ongoing narrative revolves around four boys—Stan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormick—and their bizarre adventures in and around the titular Colorado town.
Parker and Stone developed the show from two animated shorts they created in 1992 and 1995.
The latter became one of the first Internet viral videos, which ultimately led to its production as a series.
"South Park" debuted in August 1997 with great success, consistently earning the highest ratings of any basic cable program.
Subsequent ratings have varied but it remains one of Comedy Central's highest rated shows, and is slated to air through at least 2016.
The pilot episode was produced using cutout animation.
All subsequent episodes are created with software that emulates the cutout technique.
Parker and Stone perform most of the voice acting.
Since 2000, each episode is typically written and produced during the week preceding its broadcast, with Parker serving as the primary writer and director.
There have been a total of episodes over the course of the show's 17 seasons.
The series has received numerous accolades, including five Primetime Emmy Awards, a Peabody Award, and numerous inclusions in various publications' lists of greatest television shows.
The show's popularity resulted in a feature-length theatrical film, "" which was released in June 1999, less than two years after the show's premiere, and became a commercial and critical success.
In 2013, "TV Guide" ranked "South Park" the tenth Greatest TV Cartoon of All Time.
Thirteen episodes of "Citizen Khan" have been written and produced to date, and broadcast on BBC One. 
This is a list of episodes of the British television situation comedy "Lead Balloon".
The first series of six episodes aired in 2006 and a second series, extended to eight episodes, aired in 2007.
The third series began in November 2008.
All episodes are written by Jack Dee and Pete Sinclair, and are directed and produced by Alex Hardcastle. 
In 2003, Spike TV produced a new show featuring Ren & Stimpy, which was written and directed by Kricfalusi.
The first three episodes were based on fan ideas and scripts that were rejected by Nickelodeon during the original show's run.
According to Kricfalusi, Spike pushed for more "South Park"-like themes in the new show.
He criticized the new show for its overuse of toilet humour and its slow pacing.
Only three episodes aired before Spike's entire animation block was "put on hold", and the complete series was ultimately released in 2006 on DVD including three additional episodes that never aired.
Kricfalusi also wanted to release an episode titled "Life Sucks" straight to DVD, but the episode remains unproduced.