To explore the educational potential of video-evoked affective responses in a Web-based environment, the question was raised whether video in a Web-based environment is experienced differently from video in a traditional context. An experiment was conducted that studied the affect-evoking power of video segments in a window on a computer screen compared to presenting the same video materials on a television monitor. The study first demonstrates that affect-evoking power of video exists. Although not always significant, the results who that selected positive and negative video clips induce positive or negative affective responses and mood changes in participants, in a Web-based environment as well as in a television environment. Smaller window sizes, however, may do less well. (Contains 14 references.) (Author/AEF)