This study explores TV viewers’ user experience (UX) of the conversational agent (CA) assisted interactions while watching TV. In the human-computer interaction field, the user experience is primarily measured through performance and subjective self-reported data. But TV is an entertainment medium, the user experience of TV viewers should be determined based on how much the TV viewers enjoyed and immersed, rather than productivity or performance. It is also necessary to collect objective data as well as subjective self-report results of emotional experiences. Although the CA is becoming increasingly common in everyday life, the user satisfaction is still not high. However, this is mainly a result of evaluation in the performance aspect, and few studies have been carried out on the overall user experience including emotional aspects. To comparatively analyze the user experience with the CA interface and remote control unit (RCU) interface, we adopted physiological measurements for objective data as well as self-report questionnaires. Among the physiological measurement results, skin conductance (SC) differed between CA and RCU interactions. SC was high at the beginning of the CA interaction but decreased over time. In RCU sessions, SC maintained a constant value or rather increased. In the self-reporting results, the ergonomic quality of the RCU was higher than that of the CA. However, CA was evaluated more positively in terms of hedonic quality. CA had a greater effect on the overall attractiveness while having more emotional appeal. Additionally, a partial correlation between objective data and self-report results could be observed. In sum, subjective self-reports showed that CA provides a more positive TV UX with regard to emotional aspects. Physiological measurement results provide objective data for further understanding user experience by showing specific differences in cognitive involvement and emotional response changes during user interactions.

这项研究探讨了电视观众在观看电视时通过对话代理（CA）辅助交互的用户体验（UX）。在人机交互领域，主要通过性能和主观自我报告数据来衡量用户体验。但是，电视是一种娱乐媒体，因此，应根据电视观众的娱乐和沉迷程度，而不是生产力或性能来确定电视观众的用户体验。还需要收集客观数据以及情感体验的主观自我报告结果。尽管CA在日常生活中变得越来越普遍，但用户满意度仍然不高。但是，这主要是在性能方面进行评估的结果，并且很少对包括情感方面在内的整体用户体验进行研究。为了比较使用CA界面和远程控制单元（RCU）界面的用户体验，我们对目标数据以及自我报告调查表采用了生理测量。在生理测量结果中，CA和RCU相互作用之间的皮肤电导（SC）不同。在CA互动开始时，SC较高，但随着时间的推移，SC降低。在RCU会话中，SC保持恒定值，或者甚至增加。在自我报告结果中，RCU的人体工程学质量高于CA。但是，就享乐质量而言，对CA的评价更为积极。CA对整体吸引力具有更大的影响，同时具有更多的情感吸引力。此外，可以观察到客观数据和自我报告结果之间的部分相关性。总共，主观的自我报告表明，就情感方面而言，CA提供了更为积极的电视用户体验。生理测量结果通过显示用户互动过程中认知参与和情绪反应变化的特定差异，为进一步理解用户体验提供了客观数据。