Seeing the blu-ray version in all its glory was all the more of a shock since I still remember the show as I first saw it on our 19" B&W TV set on a local low power UHF station. Every episode took place in a snowstorm. Still they were unforgettable (esp. my favorite episode, "The Girl Who Was Death").
So many old beloved TV shows just look really bad on a modern TV, and can be hard to get back into. (I never have that problem with old black-and-white movies, for some reason.)