"Funnybot" is the second episode of the fifteenth season of which American animated television series, created by Trey Parker and Matt Stone?  
Funnybot:  "Funnybot" premiered in the United States on Comedy Central on May 4, 2011, the first time a "South Park" episode has aired in May since season 10's "Tsst" in 2006. South Park (season 10): The tenth season of "South Park", an American animated television series created by Trey Parker and Matt Stone, began airing on March 22, 2006.
South Park