1. A system for measuring audience reaction to media content, the system comprising: a terminal network device having: a receiver connectable to a network such that transmissions of media content including video is receivable by said terminal network device and such that the media content is playable on a display monitor connectable to said terminal network device permitting the media content to be viewable by an individual at a remote end user location where said terminal network device is located, an input for receiving data obtained by a sensor relating to an emotional response of the individual as the individual views the media content, and a transmitter for transmitting information of the emotional response of the individual in a return path on the network to an audience reaction server for receiving the transmissions of the emotional response from said terminal network device, said audience reaction server having software for aggregating emotional responses of individuals forming an audience to generate a probability density function identifying emotional responses of the audience as a whole during at least one predetermined segment of the media content.