a system interactively controlled by a tv viewer remote control transmitter displays portions of a scroll program guide on the . viewer &# 39 ; s display screen . a tuner receives tv radio frequency or optical transmission signals in a plurality of cable channels and passes a viewer usable signal to a signal combiner . a computer receives control signals from the tv viewer remote control transmitter . it controls the tuner to pass the viewer usable signal in response to one of the control signals . it receives and stores a scroll input picture image signal containing local program guide data and generates a scroll output picture image signal consisting of at least a portion of the scroll input picture image signal .