TV rerun groupie

I am a TV rerun groupie (is that the correct spelling?). Watching JAG , NCIS and Charmed. Thanks to USA Network's NCIS memorial marathon, I was able to see most of the 2003 - 2004 season shows. I like to see the character progression, especially how they were introduced / removed from the show. JAG is running every morning....I am such a sucker for the uniforms and DJE. Found a website (can't think of the link now) and played quizzes about the show. I noticed that I am not so good with the names of the episodes but I do know the characters....scary when you have "some" free time.