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The hype has ended. The promos – some of them, anyway – are being tucked away and “Terra Nova,” the series that might become Fox's signature show this season, has finally arrived.

And with it comes the intriguing story of a select group of people sent back to a distant past in the hope of correcting some major flaws, thereby creating solutions to current and future problems.

Arts and Entertainment Editor Bob Sokolsky calls that plot fascinating. But. he asks, why shouldn't it be? After all, it was fascinating when Ray Bradbury wrote it. Also Rod Serling, H.G. Wells and Mark Twain., to drop just a few names.

And the series, Sokolsky adds, seems to be setting the theme for the entire TV season with old and new shows concentrating on the old and familiar. That, he observes, won't make these ideas better, but they are definitely cheaper to produce.

Sokolsky says these matters are always a problem although he sees a potential bright side if some of the “Terra Nova” adventurers see where things went wrong and return to us with solutions.