And I do!
I love Farscape but missed a number of episodes on the original run. It's a joy sailing through the whole series again.
I started watching Babylon 5 with the very first episode, but couldn't stand the first commander and gave up on it for a while. Picked it up again a few years later and really got into it...only to be stunned when the series took what I thought was a rather abrupt turn into its final episodes. (TV's a harsh mistress.)
A quick scan seems to indicate that most if not all of the series is available on Netflix. Looks like I may have to institute my plan to stop sleeping, showering and going to the bathroom...