This disclosure provides a system by which content/service providers can enable gaze-responsive advertisement/targeted content mechanisms for CPE devices like STB's/OTT streaming devices or systems or display devices. The system creates a new opportunity for content/service providers to advertise and helps in generating revenue. The system leverages using gaze-based technology in CPE devices like STB's or large display devices. A gaze-based algorithm helps the CPE devices to locate the viewer point of attention, using which gaze-responsive advertisement/content targeting can be achieved. The disclosure provides an end to end solution—from content creation to content consumption for gaze-responsive advertisement/media delivery.