Sci-fi media franchise (4,4)

I think it could be either:

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4,4

startrek

(Other definitions for startrek that I've seen before include "TV series with Captain Kirk and Mr Spock" , "Kirk, Spock et al on TV" , "Popular sci-fi TV series with Mr Spock" , "Long-running sci-fi series" , "US TV sci-fi series" .)

I've seen this clue in The Times.

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