Content reaction evaluation and display systems and methods. Through the present invention, a user can easily identify how content changes impact content reactions. The present invention preferably includes a content presentation region, which allows a user to experience the content, and a content reaction display region, which allows a user to view content reactions as the content is experienced. A preferred embodiment of the present invention uses content reactions collected from set-top box event data, viewership logs, and other such data to generate the content reaction display. A preferred embodiment of the present invention also analyzes content reaction data to determine content ratings, content market share, and other such data and can present such data to the user along with the content reaction information.