Campaign group Railfuture said this was being done by central control and cutting the number of signal boxes, as well as improved communications and other measures.
When loaded on a tablet or smartphone, TV Discovery can act as a universal remote control, slinging commands to cable and satellite boxes, Blu-Ray players, home stereos and more.
The built-in camera interface is very basic with nothing more than buttons to control the flash settings when taking standard pictures and four small boxes showing up to four images of your progress when using panorama mode.