What episode features the character Wendy Testaburger of a show that aired on Comedy Central in August of 1997? 
Cartman Gets an Anal Probe: "Cartman Gets an Anal Probe" is the first episode of the American animated television series "South Park". Cartman Gets an Anal Probe:  It first aired on Comedy Central in the United States on August 13, 1997.
i don't know