Question: What episode features the character Wendy Testaburger of a show that aired on Comedy Central in August of 1997? 
Sentence (from "Wendy Testaburger"): Wendy debuted as a nameless background character in Trey Parker and Matt Stone's 1995 college short film, "The Spirit of Christmas", and made her first appearance on television when "South Park" initially premiered on Comedy Central on August 13, 1997 with the episode "Cartman Gets an Anal Probe".
Relevant evidence: Yes