Jerry, I used to watch it a few years ago, then I moved, it moved (I think) and I never know when it's on. I also have a hard time sitting through the crappy movies in order to hear the funny lines.
I used to love it because I like to think I'm pretty quick, but there were lines I'd get a couple of minutes after someone said them, and some I never got. It seemed like, as the series got more popular, the humor got a bit more 'pop', but I'm not sure that's true. It was still funny the last time I saw it, just not as funny. I suppose people have to run out of sarcastic sci-fi movie lines sometime, but it's more likely the novelty just wore off for me.