I haven't seen much of TNG in a good long while, aside from the occasional episode I caught in syndication... I own seasons 4 and 5 on DVD, but I don't crack those open too much. And Voyager I only own season 5 (which is, in my opinion, the show's best season... but we'll see if that changes) and otherwise I haven't watched it since its initial run.
They used to show TNG and Voyager repeats constantly over here, but only really started showing DS9 about the same time as I pretty much stopped watching live broadcast TV. I've seen most Voyager episodes at least 2 times and there really aren't many I'd like to see again. A lot of that's definitely because aside from the Doctor, none of the characters really made a lasting impression on me.
I've seen every single minute of Trek as far as I'm aware. I even confirmed it one caffeine fueled, unemployed all nighter. I went through the episode lists and watched every episode I couldn't remember seeing. I think there were like 3 of them. 1 TNG and 2 VOY.