Abstract: The invention relates to a system transmitting special signals and data between a computer center and an appliance which is able to receive and record independently video and/or audio programs produced by television or radio companies.The system has two inter-related components: data-acquisition system which helps the user in the scheduling task, and an additional real time start/stop recording system. The data-acquisition system includes a computer center, an interactive data network to which is connected a modem. The modem is connected through an interface to the timer of the videorecorder, and also to a terminal with a screen and a keyboard. Special codes are sent by the computer center to the interface in order that the timer is scheduled to record the programs that the user have selected while accessing to the computer center. Among the codes are included special identification codes used by the real time start/stop system and which are defined by the computer.