Star Trek (original) is the one broadcast-era series I'm least familiar with. As a kid, I only saw random reruns. When DVD was new, I only had 3 of those 2-episode DVD's. I had the series on DVD (the 3 colorful season sets) which I watched once or twice (I think) back when I first picked them up. A while ago, I upgraded the series to Blu-ray and gifted my 3 DVD sets to a friend. Anyway, that's my history with the show. The Blu-ray sets I bought a while ago, I'm only just recently diving into the series. I've finished S1, D2 on Blu-ray, so I am 9 episodes into the show now. I'm watching with "original effects" rather than the remasters. I love that they give this option so you can pick which version to watch. Everything looks and sounds great. I remembered the 2nd pilot (Where No Man Has Gone Before), the twin-Kirk episode (The Enemy Within), and Mudd's Women (who can forget Harry Mudd?), all great episodes. The other 6 might as well have been first viewings. I know I've seen all 80 episodes, but I'm also sure I've just completely forgotten most episodes beyond each episode's gimmick. I am honestly having too much fun with a TV show that's 20 years older than I am. 
I do have one question though: did they screw up the theme song? I am 9 episodes in, and it sounds like an electronic recording of the original theme, it doesn't sound like it was done by an orchestra, and where is that uuhh aaahhhh AHHH AAAAAAHHHH!!!! singing? My CD soundtrack to "The Cage" and "Where No Man Has Gone Before" theme song does NOT match the theme song that played for the Blu-ray version of "Where No Man Has Gone Before."
9 episodes in, and my only criticism so far: where is that epic theme song?

I do have one question though: did they screw up the theme song? I am 9 episodes in, and it sounds like an electronic recording of the original theme, it doesn't sound like it was done by an orchestra, and where is that uuhh aaahhhh AHHH AAAAAAHHHH!!!! singing? My CD soundtrack to "The Cage" and "Where No Man Has Gone Before" theme song does NOT match the theme song that played for the Blu-ray version of "Where No Man Has Gone Before."
9 episodes in, and my only criticism so far: where is that epic theme song?