If the internet proves anything, it's that lots of what people think they "know" about STAR TREK just ain't so.
Deceptive memories, confusing "fanon" with "canon," remembering scenes that didn't happen -- or that only happened in a book or fanfic, conflating two different episodes or scenes or conversations, etc.
I've seen much multiple times. The live shows I haven't watched a second time yet is DS9 and VOY. SNW I've watched s few eps twice already as I really like the feel of the show and like to analyze the sets, props and costumes. It's just so colorful and bright like TOS and TNG but even more so.