Abstract: A preprogrammed over-the-air marketing research system includes transmission facilities for delivering a regularly scheduled television signal and a low power, microwave transmitter or satellite transponder for delivering a special over-the-air television signal, including substitute programming, to cooperating households. Each household has an antenna for receiving the special television signal, a down converter and a television control unit that includes a small household stored program computer.

Abstract: A computer driven, informational display system is disclosed which visually displays selected information in real time. The arrangement is particularly adapted for displaying pricing and other associated information in retail establishments which utilize the standard Universal Product Code for the items of merchandise for sale. The particular bar code forms a unique address for respective remote display modules at selected locations throughout the store. A source of computer-based information is applied to all of the remote display units in parallel. When a particular display module detects its unique address, the information to be displayed, which follows the addressed code, is processed and used to control the operation of an LCD display.