I suppose it depends on how well it was done. Surely the spacecraft exteriors would look better with modern CGI, but as ToSeek says, you'd still have the very retro-looking control panels and equipment. It would be pretty tough to CGI all that.

But some of the "moments" that grabbed me in the TOS could stand updating. For example, when the alien ship in "The Corbomite Maneuver" approaches, dwarfing the Enterprise, I was blown away. Now it looks a bit cheesy. I wouldn't mind seeing that (and a few other scenes like it) replaced with high-quality modern equivalents.

D'you suppose they could CGI-it out to widescreen format? (Donnie B. is enjoying his new 16:9 capability.)

(Donnie B. is also wondering when CGI became a verb.)

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Bring back Firefly!

"It is quite clear that Occam's razor does not sharpen in your pyramid." (Nicolas)

"Still, a man hears what he wants to hear and disregards the rest." (Paul Simon)