Is this a show worthy of being made into a DVD set. I am only recording it for historical value and the wonderful celebrities who dropped by. The show itself sounds very boring.

It sounds interesting to me, so you should make a DVD set!

I've been recording the marathon, too, but for my own amusement. I don't plan on collecting every single episode. I'm only keeping the episodes with celebrities I like, and deleting the ones I don't care for. I doubt this is the type of show I'll watch again and again.
Incidentally, the episode with the Brady Bunch was released on a retail DVD. I purchased it when it first came out, and I only watched it once since!