One embodiment of a system and method may include communicating visual content via a visual content signal to an electronic visual display for displaying between a start time and an end time. The visual content signal may be displayed between the start and end times, and an operational parameter (e.g., voltage or current) of the electronic visual display may be sensed between the start and end times. An indicator indicative of the sensed operational parameter may be recorded. The recorded indicator provides for verification of the visual content being displayed by the electronic visual display. Signature analysis may be performed on the sensed operational parameter to determine that the visual content signal was properly displayed. In addition, a visual content signal may be uniquely identified based on the signature analysis.