Was the target audience different at the start? If not, it does invite a comparison -- which many have addressed -- of how the two shows diverged from both being aimed at adults originally.
IF they both were, that is. I am in the dark on all things LiS, other than the fact I didn't like it as a kid, on channel 50 in the '70s in Detroit; but I DID like Trek. And Batman reruns on channel 20.