Accordingly, as the image file is displayed to {HEAD ~ the user} at {TAIL ~ the user computer}, the actions taken by the user can be transmitted to the gateway server over a return channel on the broadcast device 
at
Accordingly , as the image file is displayed to { HEAD ~ the user } at { TAIL ~ the user computer } , the actions taken by the user can be transmitted to the gateway server over a return channel on the broadcast device
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH