Patent ID: 8131133

Claim:
A system for modifying a first television signal to produce a second television signal that is displayed by a video display unit upon being received by the video display unit, the system comprising: a plurality of displays in a locale, each display having a video input; a memory unit that stores information corresponding to an alternate television commercial signal; a control unit that is coupled to the memory unit and receives the first television signal, the control unit comprising an output connected to the inputs of the plurality of displays; wherein the first television signal includes at least, during a first time period, a television program signal and, during subsequent time periods, a first commercial signal and a second commercial signal; wherein, upon a first condition being met, the control unit substitutes the alternate commercial signal based upon the stored information for at least one of the first and second commercial signals to produce a second television signal; wherein the control unit substitutes the alternate commercial signal for the second commercial signal; wherein the alternate commercial signal includes display information specific to the locale; and wherein the first condition is detection of at least one blank period within the first television signal by the control unit, wherein video and audio are in a neutral state during the at least one blank period.