Reading everyones responses is so interesting! I love how so many of you had parents that got you into Star Trek! And i am surprised at how many of you started with something other than TOS!
I was ten when TOS came on television, and i loved it then. I was hooked and would write fan letters to the cast (including a marriage proposal to Shatner....at ten, mind you!)
When TNG came on i refused to watch it. I don't remember if i thought they were redoing TOS with new actors, or if i knew it was a different and later crew. I just refused to watch it!
Then, one day, i was sick with the flu. As i lay in bed, feverish and with not enough strength to even change the channel, TNG came on. It was the two part episode "Times Arrow". As much as i hated the Samuel Clemens character, i fell in love with the show. Who knew?
From then on i was hooked, watched the rest of the run and caught the first few seasons in reruns.
Watched DS9, Voyager and some of Enterprise.....but for me, nothing is as consistantly good as TOS and TNG (well, except for season 1 of tng).