A few years ago I bought the DVD's of all four seasons, the good news is that the episodes are complete/uncut, the bad news is that the DVD's are double sided and there are episodes recorded on both sides of the discs, so extra care is needed when handling the discs so not to get any scratches, scrapes or smudges on them.

This is a good show but I haven't gotten into the 1st season too much, season 1 has black and white episodes. I think the series improves a little from season 2 and forward when there are color episodes. Color makes this series look more interesting.