awww. Arthur C. Clarke did 27 times more than Shatner...as Kaleea says, it was Gene Roddenberry who drove the feel of the show...

(I also know that writers like Jerry Sohl, Norman Spinrad and Harlan Ellison tried writing for it early, but were not exactly pleased at the way the series went for mass appeal, rather than good Sc-Fi.....I guess I'm not surprised, as the producers and the network DID want to make money)