A bidirectional CATV system having a CATV distributing device and a terminal system. The CATV distributing device includes a video information generating unit that generates video information by executing software, particularly game software, using execution information and a communication unit then receives the execution information from the terminal system. The communication unit sends the execution information to the video information generating unit and transmits the video information generated by the video information generating unit to the terminal system. The terminal system incudes a TV receiver that displays the video information transmitted from the CATV distributing device and a processing device having an execution information compilation unit that compiles the execution information. The communication unit then transmits the execution information to the CATV distributing device.