I am looking for video monitors for the rear seat of my wife's SUV for the kids. I have found several headrest DVD options and the flip down screen options. I know most of the monitors will have DVD players and inputs for an external video source. What I want to know is are there any monitors with wifi streaming capability? I basically want to be able to play DVD's and stream video from either the internet via a mobile hotspot or from my GoFlex Satellite hard drive that creates its own wifi network to stream video. Or, if the wifi option is not available, are there any products that have USB input that will play videos from an external drive?