You may have read Stuart Elliott's advertising column in The New York Times Monday (3/16), in which he reported that in July the Sci Fi Channel will rename itself -- or respell itself, I guess -- and become Syfy. The trouble, as Elliott relates, is that executives concluded spelling Sci Fi like that was limiting -- Sci Fi, the channel, is also about superheroes and reality shows, which are, in their minds, just cousins of science fiction...