The Original Series
A Very Jewel Christmas wrote:
No one denies the success of TNG, but DS9, VOY and ENT didn't come close to it and are the reason it isn't on the air now. If they had all been successful, Star Trek would still be on television now.
VOY and DS9 have over double the amount of seasons that TOS has
There's just no way anybody will be able to convince me that 25 seasons is the sign of failure. It's a bloody miracle in television for a sci-fi show to get this much. Look how long Firefly lasted! And I never see people saying that show got cancelled because it was crap either.
spawned a massive fandom, which pretty much defined everything about being a sci-fi/fantasy fan today - from the entire concept of conventions to popularizing fan fiction, that's because of Star Trek. Read this ebook for a firsthand account of the era: www.ftlpublications.com/bwebook.pdf
The later shows popularized technical manuals full of pretty diagrams and meaningless technobabble, and the concept of "right" (canon) and "wrong" (animated series, novels, every manual published prior to 1993) Star Trek.
The former captured the imagination, the former ultimately constrained it.