Science fiction is a broad, aspirational genre, touching on numerous areas of popular culture. Unfortunately, not every sci-fi show can be the next "X-Files" or "Fringe." Some science fiction concepts don't work as well as others, and it's not uncommon for series like "Firefly" to get booted off the air , upsetting the fans. "Terra Nova" was an ambitious Steven Spielberg-produced series that debuted in 2011, documenting a family as they helped establish a colony 85 million years in the past.

They do this to escape the overpopulation and pollution of 22nd-century Earth, and settling in the Cretaceous Period offers a dinosaur-filled refuge. Unfortunately, like so many high-concept sci-fi projects, Fox canceled "Terra Nova" before it had a chance to get off the ground, ending after just one

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