I have Seasons 1 & 2, mostly to support the idea of rebuilding the entire show from scratch using the original elements, but also because I'd actually not seen most of the episodes. They look incredible, like they were made yesterday (which I guess they were now). And the bonus features are outstanding, mostly because they've had 25 years to look back on it, unlike features on shows still on, where its all EPK fluff.
I need to continue buying them, but we've been spending our fun money on other things.
EDIT:
I want Stargate SG-1 in HD, which they at least filmed on film.Bingowings said:
I'd be more interested in the more impossible B5 and Farscape HD sets.