Modern audio and video content typically provides multiple programming, such as multiple alternate video versions, multiple language options, and possibly also closed captioning or subtitles in multiple languages. Gateway conditioned media streaming provides systems and methods for conditioning multimedia content according to the preferences of a recipient client device, such that the device receives the preferred video, audio, and/or closed captioning automatically and regardless of the application used to play the content. When a gateway server receives a request for content, the gateway server identifies the requesting client device from recorded information, and uses the recorded preferences to modify the content stream according to those preferences. The modified content stream is then sent to the requesting client device.