Since the ‘‘laparoscopic revolution,’’ the quality of an enlarged image on a TV screen in the operating room has become one of the most important factors in mini-invasive surgery [6]. Initially, we were happy with charged-coupled devices (CCDs) as the image sensor in a single-chip camera to create an acceptable image. Soon the three-chip cameras appeared. A few years later, further improvement led to the digitized system available in a single chip and the three-chip mode. A plethora of brands and choices of cameras appeared on the market. We had conducted a previous study in which seven experienced laparoscopic general surgeons and three gynecologists were asked to evaluate the images displayed on two monitors. The characteristics of image sharpness, color display, contrast, and depths of field were graded. A variety of cameras (digitized single-chip and three-chip devices) in a random selected sequence were used. The participants filled out a short questionnaire. Interestingly, the results demonstrated a clear preference for the contrast enhancement, which made a much greater impression than the increased resolution. Perhaps the viewers were able to recognize organs more easily, particularly the edges and outlines of vascular structures. When the existing singlechip and the three-chip digitized cameras were compared, it was also surprising that the larger number of chips were not so well recognized as the contrast enhancement [2]. Attempts were made to introduce stereo TV laparoscopes, but unfortunately the systems were too cumbersome and complicated. The head-mounted display or special glasses were not suitable for routine use. [1, 3–5, 7]