In certain implementations, a method consistent with certain embodiments involves associating a first headset with a first viewer profile; associating the first headset with a first audio channel within an audio channel multiplex and with a first set of display refresh time slots; selecting a first advertisement based on criteria contained in the first viewer profile; displaying a video portion of the first advertisement on a video display during the first set of refresh time slots associated with the first headset; transmitting a synchronization signal that is synchronized to a video frame refresh clock to establish the video time slots; and transmitting an audio portion of the first advertisement on the first audio channel associated with the headset. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.