I have not seen these episodes in over 40 years so this brings back memories. There are a few blips in the picture or sound now and then but all in all it's decent quality. The only disappointment is that the episodes have obviously been edited for length. Many of the scenes that would happen before commercial breaks in the original episodes are unnaturally and abruptly faded out and that's not the way they were originally aired. The only reason I can see for doing this is to be able to fit more episodes on each disc.