Although originally expected to be the first free-to-air commercial television channel introduced to metropolitan areas since 1988, the surprise launch of rival Seven HD, on 15 October 2007, one month before transmissions were scheduled to begin meant that 9HD was not the first high definition multichannel in Australia. Following this, plans for a November launch in 2007 were postponed until 2008. On 10 March 2008, PBL Media announced that it would launch the channel on 17 March 2008 at 10:30pm, with its first program, "Nightline". The re-branded 9HD officially commenced transmission on 17 March 2008 from PBL Media's four metropolitan owned-and-operated stations, TCN Sydney, GTV Melbourne, QTQ Brisbane and NTD Darwin, in addition to WIN Corporation's two metropolitan stations NWS Adelaide, and STW Perth as well as on its regional stations RTQ Queensland, WIN southern New South Wales, VTV Victoria, and TVT Tasmania. The first official program on launch night began at 10:30pm, Nine News's late-night news program "Nightline". This was followed by military drama "E-Ring" at 11:00pm, with the movie "Unanswered Questions" marking the end of the first night of exclusive transmission for 9HD after its conclusion at 2am. All 9HD breakaway programming ceased transmission on Sunday 2 August 2009 in preparation for the launch of GO! (now 9Go!) on 9 August. As a result, 9HD became a full simulcast of Nine's main channel.  9HD was replaced by the GEM (now 9Gem) multichannel on 26 September 2010, which unlike the previous incarnation, was a full-time breakaway and branded separately (with one exception being the London Olympics). This removed the HD simulcast of Channel Nine entirely to allow a third channel to fit on Nine's DVB-T multiplex (due to technical and regulatory limitations). As a result, Nine lost all youth, news and comedy content in HD, but instead screened female, crime and lifestyle content on its only HD facility. For the purposes of some sport such as cricket, GEM was still used on an occasional basis to broadcast HD under the Wide World of Sports brand, though not necessarily as a simulcast with Nine. As such, this was generally limited to events outside of prime time, while those with more prominence continued to be shown on the Nine Network. On 26 November 2015, Nine recommenced simulcasting in HD on channel 90. As a result, 9Gem was moved to channel 92 and reduced to standard definition.