NEW YORK, March 19, 2012 /PRNewswire/ -- Cartman starts his own gem shopping channel on an all-new episode of " South Park" titled, "Cash For Gold," premiering Wednesday, March 21 at 10:00 p.m. ET/PT on COMEDY CENTRAL. Cartman launches a gemstones network show and creates a very lucrative business. Stan searches for the real value of a piece of jewelry that was a gift from his Grandpa. Meanwhile, Cartman's lucrative new business preys upon an extremely vulnerable clientele. Voted " The Greatest Animated TV Series" in a poll conducted by Entertainment Weekly, COMEDY CENTRAL's "South Park" launched on August 13, 1997. The series airs Wednesday nights at 10:00 p.m. and repeats later that night at midnight (all times ET/PT). Co-creators Trey Parker and Matt Stone are executive producers, along with Anne Garefino, of the Emmy ® and Peabody ® Award-winning "South Park." Frank C. Agnone II is the supervising producer. Eric Stough, Adrien Beard, Bruce Howell, Erica Rivinoja and Vernon Chatman are producers. "South Park's" Web site is www.southparkstudios.com. Available in 99 million homes nationwide, COMEDY CENTRAL ( www.comedycentral.com), the only all-comedy network, is owned by, and is a registered trademark of, Comedy Partners, a wholly-owned unit of Viacom Inc. (NASDAQ: VIA and VIAB). For up-to-the-minute and archival press information and photographs visit Press Central, COMEDY CENTRAL's press web site at www.comedycentral.com/press and follow us on Twitter @ComedyCentralPR for the latest in breaking news updates, behind-the-scenes information and photos.Viacom (NASDAQ: VIA, VIAB) is home to the world's premier entertainment brands that connect with audiences through compelling content across television, motion picture, online and mobile platforms in more than 160 countries and territories. With approximately 170 media networks reaching more than 600 million global subscribers, Viacom's leading brands include MTV, VH1, CMT, Logo, BET, CENTRIC, Nickelodeon, Nick Jr., TeenNick, Nicktoons, Nick at Nite, COMEDY CENTRAL, TV Land, Spike TV and Tr3s. Paramount Pictures, America's oldest film studio and creator of many of the most beloved motion pictures, continues today as a major global producer and distributor of filmed entertainment. Viacom operates a large portfolio of branded digital media experiences, including many of the world's most popular properties for entertainment, community and casual online gaming. For more information about Viacom and its businesses, visit www.viacom.com.