Yes, C. H. , tv sci fi tends to be very "King Kong".
But, there was once a period of serious tv sci fi, eg Out of the Unknown, etc.
The least known Dr who girl is probably Jean Marsh playing Sara Kingdom, in The Daleks' Master Plan, one of the best ever Dr Who stories, famously wiped by the BBC!
There used to be a web video sequence of her suddenly aging to death, via the time destructor device, a very chilling sequence! But I can't find it now, probably because the Beeb has recently "reconstructed" the entire 12 episodes, using cgi graphics, so has maybe removed it!
here's a pic:
http://en.wikipedia.org/wiki/Image:Sarakingdom.jpg .
(let's see if that link gets blocked!).
(It wasn't blocked, but too slow, so replaced by different link!).