G3, stylized as G³, was an upcoming action/adventure channel owned by rTV Networks Gavent. The channel, as GTG's owner AGavent says, "is a new kind of channel, one with an edge". The channel is based on the former rTV Networks channel Rush, which featured action, adventure, and comedy programming before its closure without launching and transfer to TamatedRNetworks as an administrative company (all now defunct).
G³ was thought of by AGavent on November 9, 2014. On the same day, the channel was publicly announced, complete with a network logo.