Censorship was at the heart of the South Park season 14 episodes '200' and '201.' The story celebrates the landmark of the show's 200th episode by referencing several past storylines - including the South Park Cartoon Wars episode. There are five South Park episodes banned in total, but season 14 episodes '200' and '201' are especially infamous because they sparked an enormous outcry from Middle-Eastern terrorism groups over the South Park Muhammad image.
The Trey Parker and Matt Stone comedy is well known for its crude and controversial material, and while there are some South Park episodes that have aged badly, '200' and '201' caused such an uproar that they were pulled from circulation on Comedy Central, South Park Studios website, and any streaming platform that airs the show. Episode '201,' in which Tom Cruise learns the folly of his attempts to avoid being made fun of, only aired on television once and was heavily censored with audio bleeps and a black bar image over.
There are two banned South Park episodes from season 14, '200' and '201', that are so infamous they've gained near urban-legend status (alongside the South Park Cartoon Wars and Super Best Friends episodes).
