Image quality plays a key role in consumer purchasing decisions. In this study we manipulated image quality of videos using a consumer product that enhances digital video images in real time. Videos were presented on two HDTVs, enhanced by varying amounts and subjects made pairwise comparisons. Our results showed two distinct preference groups (“Sharp ” and “Smooth”) in our study subjects. Preferences for enhancement depended on the video content, particularly the presence or absence of a human face. 1.