Instruct: Given a question, retrieve relevant passages that can help answer the question.
Query: When did the WWE Network intorduce the Raw brand?
Raw is a brand of the U.S. based professional wrestling promotion WWE. The brand was first established on March 25, 2002, with a draft on Monday Night Raw and went into effect one week later on April 1. The brand split was discontinued in August 2011, but was brought back in July 2016. Wrestlers assigned to the Raw brand wrestle predominantly on the Raw television program as well as Main Event, the seasonal Mixed Match Challenge, and Raw branded or co-branded pay-per-view events and WWE Network events. During the first brand split, they also competed on Heat and on ECW under a talent exchange program.
On May 25, 2016, it was announced that WWE would be reintroducing the brand split in July, with distinctive rosters for both Raw and SmackDown.[5] On the July 11 episode of Raw, Vince McMahon named Stephanie McMahon the commissioner of Raw.[6] The draft took place on the live premiere of SmackDown Live on July 19, with the general managers of the respective brands hand-picking the wrestlers for their brands.[7] Raw's Commissioner Stephanie McMahon and General Manager Mick Foley created a new championship—the WWE Universal Championship. This championship would be exclusive to the Raw brand, as the WWE World Championship had become exclusive to the SmackDown brand.[8] Clash of Champions was scheduled as the first Raw-exclusive pay-per-view since January 2007 and the reintroduction of the Cruiserweight division where as Elimination Chamber has been scheduled as final Raw-exclusive pay-per-view making upcomings to be interbranded after WrestleMania.
With the reintroduction of the WWE brand extension, a draft took place on the "SmackDown Live" premiere episode on July 19, 2016 and then-WWE Champion Dean Ambrose was drafted to the SmackDown brand. At Battleground on July 24, Ambrose successfully defended the title in a triple threat match against Raw draftees Seth Rollins and Roman Reigns, leaving Raw without a world title. On the following episode of "Raw", Raw Commissioner Stephanie McMahon and then-Raw General Manager Mick Foley created the WWE Universal Championship to serve as the brand's top championship. According to Foley, the title was named in honor of the WWE Universe, the name WWE uses to refer to its fan base.
The WWE Raw Tag Team Championship is a professional wrestling world tag team championship contested in WWE on the Raw brand. 
Introduced as the WWE Tag Team Championship, it was WWE's third world tag team title, and sixth tag team title overall. After WWE bought the promotions of Extreme Championship Wrestling (ECW) and World Championship Wrestling (WCW), and unified the WCW Tag Team Championship into its own title at Survivor Series 2001, it split its roster into two brands, Raw and SmackDown. As WWE's original World Tag Team Championship was designated exclusive to the Raw brand, SmackDown introduced the WWE Tag Team Championship as its own championship.
Following the events of the WWE brand extension, an annual WWE draft was established, in which select members of the WWE roster are reassigned to a different brand. After the WWE Tag Team Championship was unified with the World Tag Team Championship as the Unified WWE Tag Team Championship, the champions could appear and defend the titles on any WWE brand. The titles were combined as the WWE Tag Team Championship in August 2010 with a single set of belts, and continued to be defended on any brand. The brand extension was discontinued on August 29, 2011, but it was revived on July 19, 2016. The following is a list of dates indicating the transitions of the WWE (Raw) Tag Team Championship between the Raw, SmackDown, and ECW brands. 
"Review-A-SmackDown" would become a weekly podcast with the second WWE brand extension, complementing "Review-A-Raw". Unlike "Review-A-Raw", however, "Review-A-SmackDown" is intended to remain an audio-only podcast, and not a show that is meant to air on Fight Network. The first regular episode of "Review-A-SmackDown" was posted on July 19, 2016, covering the WWE draft that kicked off the second WWE brand extension.
During the program, representatives from the Raw, ECW, and SmackDown brands were involved in matches that determined which brand received a draft pick. Overall, there were 9 matches, Both SmackDown! and Raw got four while ECW got two.The 2007 draft lottery provided WWE's three brands with new wrestlers, allowing for new storylines and rivalries. Television ratings for WWE increased, as "Raw", "SmackDown!", and "ECW" became the most watched programs on their respective television networks in the summer of 2007. Four months after the draft, on October 16, 2007, it was announced that ECW and SmackDown! would have a talent exchange that would allow wrestlers from their respective brands to compete on either brand. At the end of the show Vince McMahon's limousine blew up which appeared to be the demise of the evil WWE owner. Two weeks later Vince McMahon appeared on WWE Monday Night Raw breaking kayfabe and explained that his demise was all a part of a storyline. The reason for this was that Chris Benoit was found dead in his home along with his wife and son. At the time, details of his death were not certain so WWE dedicated the show to Chris Benoit and his family.
In 2002, to exploit additional on-screen talent after buying World Championship Wrestling (WCW), WWE began a brand extension that divided the roster between the two brands of WWE, Raw and SmackDown!. Former WCW President and then Raw General Manager Eric Bischoff formally announced the creation of the chamber during the October 21 edition of "Raw" and scheduled the match to feature participants from the Raw brand roster at the 2002 Survivor Series. The match was exclusive to the Raw brand for the first four matches and at joint-branded pay-per-view events, but upon the creation of the ECW brand in , the match was instead promoted for the newly created brand at the 2006 December to Dismember. Beginning in 2008, the match became exclusive to the No Way Out pay-per-view, and two Elimination Chamber matches were featured annually for two years among the three brands. In 2010, WWE replaced their No Way Out event with the self-titled WWE Elimination Chamber, a new pay-per-view event which continued the tradition of its predecessor. From 2008-2014, the match had been featured in February pay-per-view events only. An Elimination Chamber pay-per-view event took place on May 31, 2015, exclusively on the WWE Network. After the second brand extension in 2016, it was announced that the brands would return to having separate pay-per-views. In late 2016, it was announced that Elimination Chamber would return as a SmackDown-exclusive pay-per-view in February 2017, and it switched to being Raw-exclusive in February 2018.
The title was deactivated in 2001 when ECW went out of business. ECW was then purchased by WWE two years later during the summer of 2003. In 2006, WWE reactivated the championship as the world title of their newly established ECW brand. It was a third concurrently active world championship in the promotion, complementing the WWE Championship and World Heavyweight Championship of the other two brands, Raw and SmackDown. The ECW Championship briefly appeared as the sole world title of the Raw brand in 2008 as a result of that year's draft. When WWE disbanded the ECW brand in 2010, the championship was subsequently retired with Ezekiel Jackson as the final titleholder.
The Brand Extension storyline was initiated in March 2002, in which WWE's Raw and SmackDown television programs were made into brands (similar to conferences within a league) to which employees were assigned; the ECW brand was additionally involved between 2006 and 2009. Annual drafts have followed since this occurrence, except for in 2003. As with past drafts, the purpose of the 2011 WWE draft was to increase television ratings of WWE programming and refresh the rosters for each brand. The 2011 event was confirmed by the RBC Center in April 2011, with WWE officially announcing it on the April 18 episode of "Raw". A USA Network executive had also confirmed the event to occur via a press release on the same day of the WWE announcement.
After the WWF/WWE name change in 2002, the championship was subsequently referred to as the WWE Women's Championship. With the WWE brand extension in March 2002, the Women's Championship at first was still defended on both the Raw and SmackDown brands, while most titles were exclusive to one brand. In September, the Women's Championship became exclusive to only the Raw brand, but remained the sole championship contested by women until July 4, 2008, when a counterpart to the championship, called the WWE Divas Championship, was created for the SmackDown brand. The titles switched brands in after their respective title holders were drafted to the opposite brands in the 2009 WWE draft. 
On March 10, 2005, Viacom and WWE decided not to go on with the agreement with Spike TV, effectively ending "Raw" and other WWE programs's tenure on the network when their deal expired in September 2005. On April 4, 2005, WWE announced a three-year deal with NBCUniversal to bring "Raw" back to its former home, the USA Network, with two yearly specials on NBC and a Spanish "Raw" on Telemundo. On the same week as "Raw"s return to the USA Network, Spike TV scheduled Ultimate Fighting Championship's live "Ultimate Fight Night" in "Raw"'s old timeslot in an attempt to go head-to-head with "Raw".
After the televised draft, Joey Styles, the Director of Digital Media Content for WWE's official website, interviewed the draftees on their reactions. The drafted wrestlers generally expressed approval of the draft and described what they hoped their experiences would be with their new brand. Seven of the wrestlers were champions with their original brand, and as outlined in the draft regulations, they carried their titles over to their new brand; this affected seven of nine championships. Champion draft selections included: Unified Tag Team Champions The Colóns (Carlito and Primo), United States Champion Montel Vontavious Porter, WWE Champion Triple H, and Divas Champion Maryse from SmackDown to Raw; Women's Champion Melina and Intercontinental Champion Rey Mysterio from Raw to SmackDown. Since Triple H was drafted to Raw, it left SmackDown without a top contested title, as Raw now featured two of the three top contested championships in WWE: the WWE and World Heavyweight Championships (although Edge would later brought the World Heavyweight Championship title back to SmackDown as its exclusive-top title following his win against John Cena at Backlash). When Mysterio and Porter switched brands, the two secondary championships switched brands for the first time in WWE's history. This also occurred when Melina and Maryse switched brands, as the two female contested titles also switched brands for the first time. Though the Unified Tag Team Champions were both drafted over to Raw from SmackDown, the titles were able to be defended on all three brands due to being unified.
Following the reintroduction of the brand extension in July 2016, then-champion Charlotte Flair was drafted to the Raw brand, making the championship exclusive to Raw. In response, SmackDown created the SmackDown Women's Championship on August 23, 2016. The WWE Women's Championship was subsequently renamed to Raw Women's Championship to reflect its exclusivity to Raw. In addition, WWE's developmental brand NXT established its own Women's Championship in April 2013. Another women's championship, the NXT UK Women's Championship, debuted for WWE's new NXT UK brand in 2018. The Raw, SmackDown, NXT, and NXT UK women's titles are WWE's four currently active women's championships.
Elimination Chamber (2018) (also known as No Escape (2018) in Germany) was a professional wrestling pay-per-view (PPV) event and WWE Network event produced by WWE for the Raw brand. It took place on February 25, 2018, at T-Mobile Arena in the Las Vegas Valley, in Paradise, Nevada. It was the eighth event under the Elimination Chamber chronology and the final Raw-exclusive pay-per-view under the second brand split as following WrestleMania 34, all WWE pay-per-views became dual-branded, featuring wrestlers from both the Raw and SmackDown brands. The 2018 event was also the first to feature a seven-man Elimination Chamber match, the first event to include a women's Elimination Chamber match, and the first Raw-exclusive pay-per-view since the 2016 reintroduction of the brand extension to not feature any cruiserweight division matches.
The issue of specialty championships being exclusive to one brand was partially corrected in September 2002. When SmackDown general manager Stephanie McMahon announced that Undisputed Champion Brock Lesnar was not going to appear on "Raw", Raw general manager Eric Bischoff introduced the World Heavyweight Championship for Raw. Shortly thereafter, Raw became the exclusive brand for the World Tag Team Championship, the Intercontinental Championship, and the Women's Championship. Meanwhile, SmackDown created the WWE Tag Team Championship and revived the United States Championship. The end result was each brand having four championships: World Heavyweight, Intercontinental, World Tag Team, and Women's titles for Raw; WWE, United States, Tag Team, and Cruiserweight titles for SmackDown. When ECW was revived in 2006 as a third brand, the ECW World Heavyweight Championship was reactivated as the brand's only championship. Over the course of the first brand extension, these championships switched between brands, usually due to the result of the annual draft. The Cruiserweight title, however, was the only championship to never switch brands, staying on SmackDown from 2002 until the championship's retirement on September 28, 2007.
Over Bischoff's objections, Raw Co-General Manager Stone Cold Steve Austin reactivated the Intercontinental Championship on the May 5, 2003 episode of "Raw" and declared any former champion on the Raw roster eligible to enter a battle royal at Judgment Day for the title. Christian won the battle royal to win the championship and restore a secondary singles title for Raw wrestlers to compete for. Eventually, WWE did the same thing for SmackDown and created a separate set of titles for that brand; for its secondary title, SmackDown reactivated the United States Championship that had been unified with the Intercontinental Championship in 2001, placing the WWE name on it while claiming the lineage of the old WCW title of the same name (much as they did with the Cruiserweight Championship when that became WWE exclusive).
On October 2, 2011, at Hell in a Cell, Cody Rhodes introduced a modified version of the classic championship belt design with the white strap, with an added modern WWE "scratch logo" and other embellishments. The first brand split ended on August 29, 2011, and the title could be defended on both "Raw" and "SmackDown". On August 18, 2014, the Intercontinental Championship belt, along with all other pre-existing championship belts in WWE at the time, received a minor update, replacing the long-standing scratch logo with WWE's new logo originally used for the WWE Network. On May 31, 2015, the championship was contested for in an Elimination Chamber match for the first time.
On March 10, 2005, Viacom and WWE decided not to go on with the agreement with Spike TV, effectively ending "Raw" and other WWE programs's tenure on the network when their deal expired in September 2005. On April 4, 2005, WWE announced a three-year deal with NBCUniversal to bring "Raw" back to its former home, the USA Network, with two yearly specials on NBC and a Spanish "Raw" on Telemundo. On the same week as "Raw"s return to the USA Network, Spike TV scheduled Ultimate Fighting Championship's live "Ultimate Fight Night" in "Raw"'s old timeslot in an attempt to go head-to-head with "Raw".
The title was established under the Raw brand in 2002, after Raw and SmackDown became distinct brands under WWE, and moved between both brands on different occasions (mainly as a result of the WWE draft) until August 29, 2011, when all programming became full roster "supershows". The World Heavyweight Championship was retired at on December 15, 2013, when it was unified with the WWE Championship. Triple H was the inaugural World Heavyweight Champion, with Randy Orton being the last.
Initially, the Undisputed WWE Championship and the original WWE Women's Championship were available to both brands.[9][10][11] The other championships were exclusive to the brand the champion was a part of.[9][10][11] When the brand extension began, Raw received the Intercontinental Championship and European Championship when their respective holders were drafted.[12] In September 2002, the WWE Undisputed Championship became the WWE Championship again and was moved to SmackDown, prompting Raw General Manager Eric Bischoff to create the World Heavyweight Championship for Raw.[13] Shortly thereafter, Raw became the exclusive brand for the World Tag Team Championships, the Intercontinental Championship and the WWE Women's Championship.[14][15]
After the WWF/WWE name change in 2002, the championship was subsequently renamed to "WWE Tag Team Championship". During the initial WWE brand extension, the WWE Tag Team Championship was assigned to the SmackDown! brand, but after Raw's The Un-Americans (Christian and Lance Storm) defeated SmackDown!'s Billy and Chuck for the championship, the title moved to the Raw brand, leaving SmackDown! without a tag team title. As a result, then-SmackDown! General Manager Stephanie McMahon commissioned a new tag team title, also called the WWE Tag Team Championship, to be the exclusive tag team titles for the SmackDown! brand. With the introduction of the World Heavyweight Championship on the Raw brand after the WWE Championship became exclusive to SmackDown!, the WWE Tag Team Championship on Raw was renamed to "World Tag Team Championship". This was done so that the names of both tag team titles would mirror the names of the top championships on their respective brands. When the WWE Championship and World Heavyweight Championship switched brands during the 2005 WWE draft lottery, however, neither of the tag team titles were renamed.
The Brand Extension storyline was initiated in March 2002, in which WWE's Raw and SmackDown television programs were made into brands (similar to conferences within a league) to which employees were assigned to; the ECW brand additionally involved between 2006 and 2009. Since its inception, annual drafts have followed, except for in 2003. As in previous drafts that followed the Brand Extension, the purpose of the 2010 WWE Draft was to increase television ratings of WWE programming and refresh the rosters with new storylines for each brand. The 2010 WWE Draft was confirmed both by WWE and Richmond Coliseum via their websites between March and April 2010, which featured the draft eligibility of WWE employees from the Raw and SmackDown brands. The event was scheduled to take place over two days, in which the televised draft would air live on the USA Network in the United States from the Coliseum in Richmond, Virginia on the April 26 episode of "Raw". The second portion of the draft, the "supplemental draft," was originally scheduled for April 28; however, it was announced during the live broadcast that it would be held the next day on April 27 with selections being announced via WWE's website.
In 1990, the Women's Championship became inactive after Rockin' Robin vacated the championship following her departure from the WWF. Then in December 1993, the title was reactivated with Alundra Blayze winning a tournament for the vacant Women's Championship. However, the Women's Championship became inactive again when Blayze was released from the WWF. Blayze, as Madusa, unexpectedly signed with World Championship Wrestling in 1995 and threw the championship belt, which was still in her possession, in a trash can on an episode of "WCW Monday Nitro" (in Blayze's 2015 WWE Hall of Fame speech, she "returned" the title). The Women's Championship was reactivated again in September 1998 when Jacqueline Moore defeated Sable to win the title.
After the WWF/WWE name change in 2002, the championship was subsequently referred to as the WWE Women's Championship. With the WWE Brand Extension in March 2002, the Women's Championship at first was still defended on both the Raw and SmackDown brands, while most titles were exclusive to one brand. In September, the Women's Championship became exclusive to only the Raw brand. The Women's Championship remained the sole championship contested by women, until July 4, 2008 when a counterpart to the championship, called the WWE Divas Championship, was created for the SmackDown brand. On April 13, 2009, the Women's Championship became exclusive to the SmackDown brand when reigning champion Melina was drafted from Raw to SmackDown during the 2009 WWE Draft to replace the current WWE Divas Champion Maryse, who had been drafted to Raw.
WWE Raw, also known as Monday Night Raw or simply Raw, is a professional wrestling television program that currently airs live on Monday evenings at 8 pm ET on the USA Network in the United States. The show's name is also used to refer to the Raw brand, to which WWE employees are assigned to work and perform. The show debuted on January 11, 1993 and has since been considered as the flagship program of WWE.
Over the course of the first brand extension, the WWE Championship was used as the world title of the SmackDown brand twice and the Raw brand three times. In all but two cases, the WWE Championship switched brands as a result of the annual draft. In June 2006, the WWE established ECW as a third brand, on which former Extreme Championship Wrestling stars and newer talent competed. When ECW's Rob Van Dam won the WWE Championship at ECW One Night Stand on June 11, 2006, the championship briefly became a world title of the ECW brand; the ECW World Heavyweight Championship was subsequently reactivated for the ECW brand upon Van Dam's title win. Van Dam held both titles until he lost the WWE Championship to Raw's Edge the following month. The ECW brand was disbanded in 2010, subsequently deactivating the ECW Championship. The first brand extension ended in August 2011.