Problem: Background: Sonic Underground is an animated series co-produced by TF1, DiC Entertainment (which was owned by Disney at the time) and Les Studios Tex. It is the third Sonic the Hedgehog animated series, and also the last one produced by DiC; it follows a main plot separate from all other Sonic the Hedgehog media, where Sonic had two siblings, Sonia and Manic, that were collectively part of a royal family who were forced to separate from their mother, Queen Aleena, upon Robotnik's takeover of Mobius due to a prophecy told by the Oracle of Delphius. It first premiered in France on 6 January 1999 on TF1, and then premiered in the United Kingdom on 2 May 1999 on ITV and finally in the United States in syndication on 30 August 1999 and ended on 22 October 1999.
Context: Sonic Underground first premiered in France on 6 January 1999 and aired on TF1 on the TF! Jeunesse block on Wednesdays and Sundays.  The show later premiered in English in the UK on 2 May 1999 and aired on ITV1 on Sunday mornings. ITV1 aired the first 18 episodes in the original UK run before cancelling the show.  In the United States, Sonic Underground premiered on 30 August 1999 (one day after the show was cancelled in the UK) and aired on the Bohbot Kids Network syndication block on weekday mornings at 6:00 AM Central Time. It ran for one season from 30 August 1999 to 22 October 1999. On the Sci-Fi Channel (formally part of the Bohbot Kids Network), the episodes that were supposed to air on Fridays were skipped because Double Dragon and later King Arthur and the Knights of Justice were airing instead, therefore only airing 32 of the 40 Sonic Underground episodes. It also aired in Canada on Teletoon.  Sonic Underground was later rerun. In the United Kingdom in 2005, Sonic Underground aired on Pop, which has also aired Adventures of Sonic the Hedgehog on its sister station Kix!. Between 2005 and 2006, it aired on ITV2 on the Action Stations! block. On 19 January 2006, CBS announced a multi-year deal with DIC to broadcast some of their shows on the "CBS's Secret Saturday Morning Slumber Party" segment, including Sonic Underground. In 2009, reruns of Sonic Underground aired on Firestone Communications' Sorpresa, a Hispanic children's station (Channel 850 on Time Warner Cable) in the United States, were broadcast audio-dubbed Latin Spanish episodes. In 2011, the show was broadcast by KidsCo. Re-runs of the series aired on Disney XD starting 11 June 2012 and ending on 14 December 2012. This makes it the second time a Sonic the Hedgehog cartoon airs on a Disney-themed channel with the first being Adventures of Sonic the Hedgehog on Toon Disney.  In South Africa, Fox Crime had originally planned to air Sonic Underground on 21 August 2015 as Case File Toon service of DStv, TopTV, SpaceTV, My.T and ZAP, but has been put on hold.
Question: Who produced this show?
Answer: Sonic Underground

Background: Queens of the Stone Age are an American rock band formed in 1996 in Palm Desert, California. The band's line-up includes founder Josh Homme (lead vocals, guitar, piano), alongside band members Troy Van Leeuwen (guitar, lap steel, keyboard, percussion, backing vocals), Michael Shuman (bass guitar, keyboard, backing vocals), Dean Fertita (keyboards, guitar, percussion, backing vocals), and Jon Theodore (drums, percussion). Formed after the dissolution of Homme's previous band, Kyuss, Queens of the Stone Age developed a style of riff-oriented, heavy rock music. Their sound has since evolved to incorporate a variety of different styles and influences, including working with ZZ Top member Billy Gibbons, Nirvana drummer and Foo Fighters frontman Dave Grohl, and Screaming Trees frontman Mark Lanegan who has been a steady contributor to the band.
Context: Foo Fighters frontman and former Nirvana drummer, Dave Grohl, joined in late 2001 to record drums for their third album. Songs for the Deaf was released in August 2002, again featuring Lanegan, along with former A Perfect Circle guitarist Troy Van Leeuwen to the touring line-up following the album's release. Also featured on Songs for the Deaf for the final track "Mosquito Song" were former A Perfect Circle bassist Paz Lenchantin on viola and piano, and Dean Ween on guitar.  This record was supposed to sound bizarre--like lightning in a bottle. We also were extremely fucked up. It even sounds that way to me, like a crazy person. The radio interludes are supposed to be like the drive from L.A. to Joshua Tree, a drive that makes you feel like you're letting go--more David Lynch with every mile.  Songs for the Deaf was a critical hit and was certified gold in 2003, with sales of over 900,000. The singles "No One Knows" and "Go with the Flow" became hits on radio and MTV, with the former just outside the Billboard Top 40. "No One Knows" and "Go with the Flow" were also featured on the first iterations of the popular video games Guitar Hero and Rock Band (respectively).  The Songs for the Deaf tour culminated in a string of headline dates in Australia in January 2004. Grohl returned to his other projects and was replaced on the European leg of the tour by former Danzig drummer Joey Castillo, who joined the band full-time. After the tour, Homme fired Oliveri, as he was convinced that Oliveri had been physically abusive to his girlfriend: "A couple years ago, I spoke to Nick about a rumor I heard. I said, 'If I ever find out that this is true, I can't know you, man.'" Homme considered breaking up the band after firing Oliveri, but found a new determination to continue. Oliveri countered in the press that the band had been "poisoned by hunger for power" and that without him, they were "Queens Lite." He later softened his opinion and said: "My relationship with Josh is good. The new Queens record kicks ass." The two reportedly are still friends and as of October 2006, Oliveri was interested in rejoining the band. Oliveri later contributed to a Queens of the Stone Age for the first time in nine years, contributing backing vocals to the band's sixth album, ...Like Clockwork.
Question: What happened when Oliveri left?
Answer:
The two reportedly are still friends and as of October 2006, Oliveri was interested in rejoining the band.