While there's more choice in today's market, SF is generally far less "niche" than it once was, isn't it? We've seen lengthy and successful overlapping runs from B5
(which racked up seventeen consecutive seasons in one form or another), BSG
, a hugely successful revival of Doctor Who
that has almost reached the point of eclipsing the old franchise... counting shows like Fringe
and The X-Files
, I'd say SF has demonstrated a pretty healthy public support base.
It's not that that market isn't there for Trek to take a piece of. The Trek spinoffs ultimately faltered because Trek
became niche: they were creatively hobbled by a succession of fatally "safe" decisions and other shows came along and outpaced them, not because SF was too "niche."