Question: Strictly Come Dancing returned for its tenth series, and began with the launch show on 15 September 2012, the judging panel by series 7 guest judge Darcey Bussell, who replaced another judge, Bussell is a retired English ballerina, and is currently one of the four judges, on which organization reality show "Strictly Come Dancing"?

Context paragraphs:
Strictly Come Dancing (series 13): Strictly Come Dancing returned for its thirteenth series on BBC One with a launch show on 5 September 2015, with the live shows starting on 25 September 2015.  Tess Daly and Claudia Winkleman returned to present the launch show and the live shows while Zoë Ball returned to present "" on BBC Two.  Len Goodman, Bruno Tonioli and Craig Revel Horwood returned as judges for their thirteenth series, along with Darcey Bussell who returned for her fourth series as a judge.

Strictly Come Dancing (series 5): Strictly Come Dancing returned for its fifth series on 29 September 2007 on BBC One.  Bruce Forsyth and Tess Daly returned as co-presenters of the main show on BBC One, while Claudia Winkleman returned to present spin-off show "" on BBC Two.  Len Goodman, Bruno Tonioli, Craig Revel Horwood and Arlene Phillips returned to the judging panel for their fifth series.

Strictly Come Dancing (series 15): Strictly Come Dancing returned for its fifteenth series with a launch show on 9 September on BBC One, with the live shows starting on 23 September 2017.  Tess Daly and Claudia Winkleman returned as hosts, while Zoë Ball returned to host "" on BBC Two.  Bruno Tonioli, Craig Revel Horwood, and Darcey Bussell returned as judges.  On 9 May 2017, it was announced that Len Goodman would be replaced by Shirley Ballas due to Goodman's retirement from the show.  This is the first series to have 2 female and 2 male judges on the panel.

Strictly Come Dancing (series 12): Strictly Come Dancing returned for its twelfth series beginning from 7 September 2014 with a launch show, with the live shows starting on 26 and 27 September.  Tess Daly returned to present the main show on BBC One alongside Claudia Winkleman, who has been promoted to co-presenter in addition to the results show after Bruce Forsyth decided to leave the show after the eleventh series; however, Forsyth will continue to host the Christmas and Children in Need specials.  Zoë Ball returned as presenter of spin-off show "" on BBC Two.  Judges Len Goodman, Bruno Tonioli, Craig Revel Horwood and Darcey Bussell also returned.

Strictly Come Dancing (series 10): Strictly Come Dancing returned for its tenth series and began with the launch show on 15 September 2012.  The live shows commenced on 5 October.  Fourteen celebrities took part - the same number as the previous year.  Bruce Forsyth and Tess Daly returned to present the main show on BBC One and Claudia Winkleman returned to present the results show with Daly.  Zoë Ball returned to present spin-off show "".  Judges Len Goodman, Bruno Tonioli and Craig Revel Horwood all returned and were joined on the judging panel by series 7 guest judge Darcey Bussell, who replaced Alesha Dixon.

Strictly Come Dancing (series 11): Strictly Come Dancing returned for its eleventh series beginning with a launch show on 7 September 2013, with the live shows starting on 27 and 28 September 2013.  Bruce Forsyth and Tess Daly continued to co-present the main show on BBC One, with Claudia Winkleman returning to present the results show alongside Daly.  Zoë Ball returned as presenter of "" on BBC Two.  Len Goodman, Bruno Tonioli, Craig Revel Horwood and Darcey Bussell also returned as judges.

Strictly Come Dancing (series 14): Strictly Come Dancing returned for its fourteenth series with a launch show on 3 September on BBC One, with the live shows starting on 23 September 2016.  Tess Daly and Claudia Winkleman returned as hosts, while Zoë Ball returned to host "" on BBC Two.  Len Goodman, Bruno Tonioli, Craig Revel Horwood and Darcey Bussell returned as judges.  This was Goodman's final series as a judge.

Dancing with the Stars (Greece season 2): Dancing with the Stars was a Greek reality show airing on ANT1 and filmed live in Athens.  The show was based on the United Kingdom BBC Television series "Strictly Come Dancing" and was part of BBC Worldwide's "Dancing with the Stars" franchise.  The theme song was "It's personal" performed by Swedish indie pop band The Radio Dept.  The second season of the show started on 20 March 2011.  Season's 1 winner Errika Prezarakou joined the judging panel, replacing Galena Velikova.  ANT1 launched a daily spin off titled "Dancing with the Stars Daily" on March 21, hosted by former contestant Eugenia Manolidou.  The show was canceled on April due to low ratings.

Darcey Bussell: Darcey Andrea Bussell CBE (born Marnie Mercedes Darcey Pemberton Crittle 27 April 1969) is a retired English ballerina, and is currently one of the four judges on the BBC reality show "Strictly Come Dancing".

Strictly Come Dancing (series 7): Strictly Come Dancing returned for its seventh series on 18 September 2009 on BBC One.  Bruce Forsyth and Tess Daly returned as presenters of the main show on BBC One, whilst Claudia Winkleman presented spin-off show "" on BBC Two.  Len Goodman, Bruno Tonioli and Craig Revel Horwood returned as judges.  Series 5 winner Alesha Dixon joined the judging panel as a replacement for Arlene Phillips.  Darcey Bussell was a guest judge from the quarter final onwards.

Supporting paragraphs: Strictly Come Dancing (series 10) Darcey Bussell
Answer: BBC