Okay, i relation to the question that was asked previously. Would I enjoy them more now than I did when I first watched them? Short answer... No. All of my favourites look slightly dated now. For example, I started watching Dragon Ball Z from the beginning again. It's dated and aimed at a different audience to what I am now. It's the same with many of the series i have tried to re-watch, times have moved on and the biggest change has been me. I have matured and wouldn't have the patience to watch some of the things I did in the past. For example Star Trek TNG, Voyager, SG1 etc do not entertain me as much as before, even though there are episodes I have not watched I still can't bring myself to watch them again. I also think that the "good times" should stay as that. It's the past and it's good to remember it as you do.
The "forget because it was that bad":SG:U. They lost track of what made Stargate awesome. And it pulled a Lost and got confusing. The "forget because I'd love to watch anew": SG:1 It's that awesome. I have all 5 seasons of Atlantis, btw. Weren't they supposed to make an Atlantis movie?