I was in a high-end audio store yesterday and looked and listened to the new Integra DPS-7.2 interlaced DVD-Audio player. In talking to a salesman there that I know well, I told him that I was surprised that Onkyo/Integra didn't include progressive-scan capability in the player given its $800 price. He replied, "That's because Integra knows that progressive-scan capability isn't necessary in a DVD player." He went on to say that progressive-scan capability in DVD players is one of the biggest gimmicks in home theater these days. I knew where he was going. His point was that quality HDTVs have better 3D comb filters than DVD players. In his words, "Which do you think is going to have a better comb filter? An $800 DVD player or a $4000 HDTV? Obviously the HDTV." I just nodded in agreement because I had not researched the matter on my own. However, I told him that I always come across people who use progressive-scan players with HDTVs. His response was, "That's because they haven't compared the comb filters in their TVs and DVD players or because their DVD players have poor interlaced video output." He went on to say that they use interlaced output in their high-end video rooms that provide incredible video quality. Thus, he said there is no reason to use the progressive-scan output on these players. I found his viewpoint very surprising. Isn't it true that people often use composite video cables with LD players because the LD players have inferior comb filters than quality TVs? If so, then why might the situation be different with DVD players? So, does the salesman I spoke to have a point or not?