GEM began transmission on 26 September 2010 taking over from Nine HD. The channel launched one day after Seven Network's multichannel 7mate began transmission. The name was an acronym for General Entertainment and Movies, and was a reference to the channel's picture clarity, being in high definition at the time.
9Gem[]
2015–present[]
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On 26 November 2015, GEM was downgraded to standard definition and was renamed to 9Gem. The name change came about as the Nine Network rebranded most of their channels by adding the Nine dots. Between 14 and 19 June 2019, 9Gem was converted to HD throughout various parts of Australia on channel 95 (NBN followed suit on 1 August). On 27 July 2023, WIN upgraded their SD broadcast of 9Gem on channel 81 to HD.
