I'm another who was too young to remember my first episode. I was only 1 year old when TNG started and my mother watched every episode religiously. Some of my best childhood memories are of watching TNG with her (the first time I saw Best of Both Worlds
, WOW) and of attending Star Trek conventions with her.
Though I came back to Star Trek in my 20s not for nostalgia but because I needed something to remind me of the potential good in humanity. If there's something better than Star Trek for that, I haven't found it.