You're NOT insane. A tad sentimental, perhaps, but not insane. I was born in 1961 and was also a big fan of the the show. The opening sequence used to kind of hypnotize me. I can't remember any of the plot lines though, and don't know how the show would hold up now.
I sold a few of the then out of print shows on VHS a few years back...not bad...a bit sitcomy, dated, but still watchable.
My wife, who's a little older than me, says it was one of the dullest shows on television. Oh, well, what can ya do? I still have fond (if blurry) memories of watching it.
Ted Bessell always annoyed me, even when I was a kid. Marlo was cute, though.
I have no desire to revisit this show.