High Quality Content by WIKIPEDIA articles! "Mecha-Streisand" is the 12th episode of the first season of the animated television series South Park. It originally aired on Comedy Central in the United States on February 18, 1998. In the episode, Barbra Streisand obtains the Diamond of Panthios from the South Park boys and transforms into a giant mechanical dinosaur called Mecha-Streisand. She is ultimately defeated by The Cure frontman Robert Smith, who himself transforms into a giant moth monster.