I could call a show my very own, something I could cling to, something I could witness from the beginning. It carries emotional resonance with me.
That's sort of the feeling old geezers like me have regarding TOS, because we were among the living when it first aired on NBC. It was all we had for nearly 20 years, besides the animated series.
I didn't get to see Seasons 3 & 4 of ENT until last February, after buying the complete series collection. I've seen most of them several times each already, and only recently got into the 3rd season on my reviews.