Let's admit it: there aren't that many things we'd rather see on TV than John Kniceley getting tasered. And, God love 'em, the kids at the Big Six are promising us just that on Tuesday night's 10 o'clock cast. But think how much better it could be if they'd only take the idea a step or two further. What if, for instance, they allowed viewers to choose which reporter, anchor, or weatherdude got