For a series in which dialogue, sound effects, and music are as important as the visual aspects, it's unpardonable that MGM/UA has degraded the original sound quality on these DVD transfers. As opposed to the reasonably bright and clear sound quality available on previous VHS and laserdisc releases, what we get here is sound so compressed, dull, and distorted that it makes these great episodes a trial to get through. I didn't find the video quality all that bad, but I'm still relieved that I didn't give up my four volumes on laserdisc.My low rating is certainly not for the series itself, which ranks as one of the greatest ever. It's just me expressing my frustration over the irresponsible transfer of perfectly fine source material.