Question: Everybody Draw Mohammed Day (or "Draw Mohammed Day") was a 2010 event in support of artists threatened with violence for drawing representations of the Islamic prophet Muhammad, it stemmed from a protest against censorship of the American television show "South Park" which specific episode, in response to death threats that had been made against some of those responsible for two segments broadcast, in which episode, a superhero-like group of religious figures team up to save South Park from the celebrities and their monster Mecha-Streisand, while Eric Cartman learns the true identity of his father?
Sentence (from "201 (South Park)"): It originally aired on Comedy Central in the United States on April 21, 2010.
Relevant evidence: No