This case study is designed to investigate how distance education technology affects the instructor’s simultaneously teaching the same course via instructional television (ITV) and traditional education (face-to-face) formats. This study involved random observations of the instructor in a graduate course in both instructional television and face-to-face classrooms. In addition, an interview with the instructor was conducted to collect more data. This study has suggested that the instructor who teaches the same course in both ITV and traditional education formats exhibits both similarities and differences among the three instructional phases (before-class, in-class, and after-class) in both situations. The results of this study will have significant implications for future distance education instructors.