I remember watching the original BG series years ago and enjoying it, so a year or two ago I picked up the original pilot movie and first season of the original series on DVD, and enjoyed it. They showed the first two years of the new series on TV here, and I enjoyed them, too, but seem to have missed the third and subsequent years, if they have shown them.
I sort of preferred the Cylons all being toasters, but have got used to the human-clone aspect; it adds an interesting twist and some suspense, and helps "update the science" involved. One thing that bugs me is that they re-gendered Starbuck to be a girl. Having a female in that sort of role is fine, but they should have altered the name at the same time to reflect the change ("Stardoe" sounds corny, but something other than the original Starbuck ... who himself was a clone of Han Solo, and the inspiration for the coffee place!

).
The other thing I found way over-played was all the religious nonsense about the scientist guy with the "invisible" blond companion. I got tired/bored with all that stuff. Adding some elements of prophecy, religion, etc... and elements of mythology is in keeping with story-telling and even sci-fi tradition, but that part of it I thought was over-blown.
I recently picked up and re-watched the first three seasons of Babylon Five, and thoroughly enjoyed them.
Also found a couple seasons of a Star Trek spin-off called "Enterprise", which was never shown here in Hong Kong, so I knew nothing about it. Ended up enjoying it.
I also have some of the original Star Trek shows as well as the movies, on LaserDisc. Dated as they are, even those are enjoyable enough when I'm in the mood for them.
I agree with the idea that it is better not to have to wait a week between episodes of a series. When you watch the shows back-to-back over several evenings instead of spread out over weeks, you pick up more details of the over-arching story lines. For that reason, I keep my eyes open for the seasons of these shows that I'm still missing. Sci fi may be "geeky" to some people, but I like it!