Question: Which tv channel aired the episode "Cancelled" as part of the show "South Park"?

Context paragraphs:
Metropolitan Indianapolis Public Broadcasting: Metropolitan Indianapolis Public Broadcasting, Inc. is a not-for-profit corporation, located in Indianapolis, Indiana, that operates WFYI Public Television (channel 20, digital channels 20.1, 20.2 and 20.3) and WFYI-FM Public Radio (90.1 FM & HD1 and HD2, publicly branded as "The Point"), which are member stations of the Public Broadcasting Service (PBS) and National Public Radio (NPR), respectively.  Digital TV channel 20.1 (WFYI 1) primarily broadcasts mainline PBS Kids programming during the day and both locally produced and nationally produced and distributed PBS productions in the evenings and overnight.  Digital TV channel 20.2 (WFYI 2) operates as "V-me," airing local and national Spanish-language programming.  Digital TV channel 20.3 (WFYI 3) airs some re-runs of nationally-developed programming as well as elements of the national "Create Channel," which focuses programming on "how-to" types of educational TV.  The beginnings of the "Indiana Channel" are also aired weekly on WFYI 3.

Police &amp; Thief: Police & Thief (also spelled as Police and Thief) () is a 2004 Singaporean sitcom that aired on MediaCorp TV Channel 5 between 2004 and 2010.  One episode was also aired in Mandarin (undubbed, with some English dialogue) on MediaCorp TV Channel 8 in 2009.  Two seasons were later dubbed into Mandarin and aired on Channel 8 in 2012, becoming Channel 5's first ever sitcom to be dubbed into Mandarin.

CBWFT-DT: CBWFT-DT, virtual channel 3 (UHF digital channel 51), is an Ici Radio-Canada Télé owned-and-operated television station located in Winnipeg, Manitoba, Canada.  The station is owned by the Société Radio-Canada arm of the Canadian Broadcasting Corporation, as part of a twinstick with CBC Television outlet CBWT-DT (channel 6).  The two stations share studios located on Portage Avenue and Young Street in Downtown Winnipeg, and its transmitter is located near Red Coat Trail/Highway 2) in Macdonald.  This station can also be seen on Shaw Cable and MTS TV channel 10, and Bell TV channel 118.  There is a high definition feed offered on Shaw Cable digital channel 214 and MTS TV channel 448.

Cancelled (South Park): "Cancelled" (also known as Cartman Gets an Anal Probe Redux) is the first episode of the seventh season of the American animated television series "South Park", and the 97th episode of the series overall.  It first aired on Comedy Central March 19, 2003.

Karaoke on the Maidan: Karaoke on the Maidan was one of the most popular TV projects in Ukraine.  Its rates and shares were very high.  It was on air during more than 10 years.  Ihor Kondratuk was a presenter and coauthor of this TV show.  Andrey Kozlov ("What?  Where?  When? " magister) who is a godfather of Kondratuk's child was as well a coauthor of "Karaoke on the Maidan".  This format had been beamed in Russia on TV channel 31 (February 1997 to the end of 1999) before it started in Ukraine on TV channel Inter in 1999.  TV channel 1+1 bought the right to broadcast it on air in 2007.

CBUT-DT: CBUT-DT, virtual channel 2 (UHF digital channel 43), is a CBC Television owned-and-operated television station located in Vancouver, British Columbia, Canada, which serves as the Pacific Time Zone flagship of the network.  The station is owned by the Canadian Broadcasting Corporation, as part of a twinstick with Ici Radio-Canada Télé outlet CBUFT-DT (channel 26), which is operated through corporate subsidiary Société Radio-Canada.  The two stations operate from the CBC Regional Broadcast Centre on Hamilton Street in downtown Vancouver, and its transmitter is located atop Mount Seymour.  On cable, the station is available on Shaw Cable and Delta Cable channel 3.  On satellite, the station is also available on Shaw Direct classic lineup channel 321 or advanced lineup channel 004 and Bell TV and Telus TV channel 251.  There is also a high definition feed on Shaw Cable digital channel 209, Optik TV digital channel 100 (HD) and channel 9100 (SD), Shaw Direct classic lineup channel 003 and advanced lineup channel 503, and Bell TV channel 1150.

South Park (season 7): Season seven of "South Park", an American animated television series created by Trey Parker and Matt Stone, began airing on March 19, 2003.  The seventh season concluded after 15 episodes on December 17, 2003, and was written and directed by Trey Parker.

Boing (France): Boing is a French-language TV channel aired at children in France and Francophone Africa.  The channel was launched in 2010 along with the Italian and Spanish versions of Boing.

ETC (Chilean TV channel): ETC is a Chilean cable TV channel currently owned by Mega.  The channel's slogan is ""Todo pasa por Etc.. .""  (Everything Happens on Etc.. .) .  Launched in 1996, the company was previously owned by Telefilms Ltda.  Starting with a low budget, the channel was originally conceived as a "miscellaneous" channel (the name of the channel, ETC, is based on et cetera), focusing on children's programming and some North American sitcoms in their first year.  In 1997 when the channel aired "Sailor Moon and Saint Seiya", the station experienced an increase in ratings, leading the station to narrow their focus to include primarily Japanese anime, though in recent years they have also added some South Korean contents including music and kdrama.

Star Awards 2005: Star Awards 2005 was the 12th Star Awards ceremony, held on 4 December 2005.  It was part of the annual Star Awards organised by MediaCorp for MediaCorp TV Channel 8.  Following MediaCorp's merger with SPH MediaWorks on 1 January 2005, the nominees included artistes from the former SPH MediaWorks Channel U, many of whom were former employees of MediaCorp and its predecessor Television Corporation of Singapore.  MediaCorp TV Channel 8 broadcast the awards ceremony from 7:00 pm to 10:00 pm while SPH MediaWorks Channel U now MediaCorp TV Channel U, aired the ceremony for the first time and began broadcasting the ceremony at 7:30 pm.

Supporting paragraphs: Cancelled (South Park) South Park (season 7)
Answer: Comedy Central