Re: Big earner
"we have a tradition of good TV sci-if" ...
OK, let's make a list:
Stingray/Thunderbirds/Captain Scarlet/UFO (presuming by 'us' you mean Britain).
About 3 episodes of 'The Tomorrow People'.
The Flipside of Dominick Hide.
VERY early Dr Who (Hartnell era, some later but very rare after that).
A couple of Star-Cops episodes.
Some of the Hitch-Hiker's Guide.
I'm specifically excluding:
Blake's bloody 7.
(and everything else).
The British are as likely to win the world cup as make a decent stab at a science fiction story on TV!
Whereas the Americans know exactly how to do it and make us look VERY stupid.
99% of Dr Who (badly written childish fantasy)