This is something that's bugged me a bit about the STAR TREK Season One set (even though I'm a horror and sci fi fan of 42 and have seen just about everything movie and television-wise, STAR TREK is one show I've only just started to get into lately)! Anyway, I personally prefer the shows to be presented on DVD in order of PRODUCTION, not as they were originally aired. While I can appreciate the nostalgia factor in seeing the shows exactly as they first premiered, for a newcomer it just helps to see each episode in the order it was MADE. There are all sorts of early references, nuances and things which serve to educate you from the start. And in the case of StAR TREK, this is pretty important. We see Spock, for instance, start off more emotional until Leonard Nimoy got more of a handle on how to play him. The uniforms and things also change back and forth if watched in this "random" order. I know some people prefer "broadcast" order, even if it means watching episodes 11, 2, 6, 23, 1, and 5... what do you think?