With the advent of the post-pandemic era, the integration of online and offline education has become one of the future development trends and major challenges. This article utilizes the Semantic Wave Theory to teach the "Film and Television Creative Course" through a combination of offline and online methods. While offline teaching is conducted, a teaching project Q&A practice is also carried out on the online "Xuexi Tong" Platform. Finally, by evaluating students' performances both online and offline using multiple indicators, the effectiveness of their participation in the course is analyzed from various perspectives. Furthermore, the statistical software SPSS was used to determine the significance of each metric's impact on student learning outcomes. The results show that students in the experimental group had better learning outcomes than those in the control group, and demonstrated a more positive emotional experience. The results also suggest that blended learning is a practical approach to improving student learning outcomes and promoting positive emotional experiences, ultimately enhancing teaching effectiveness.