Same here. I was 10 when the series first aired and loved it. Still do. I purchased the DVDs (those horrid record box package things), then the better (but still not that good) digipak versions and finally the BR release (which, again, is in absolutely some of the worst packaging I own). I...
That would be a very small drop in a huge bucket for me... I own ~530 *complete* series of 1 to 10 seasons each and another 100 or so of series that were stalled, I own "enough," or that I'm still collecting. Even with a single season each assuming the typical 4 discs/season that would be ~2500...
Using your examples, I've rewatched Star Trek: TOS more times than I can remember and rewatch it at least once a year. I've seen Batman at least 4 times since it was released on disc. Twilight Zone, twice.
I'm like Josh - there are shows I purchased solely to see them again, many of which...