How good are the zoom modes on the TXM3096/3097? I'm considering buying this set tomorrow and want to know how distorted 4:3 broadcasts will be when zoomed in/stretched? I've read that some 16:9 sets zoom/stretch pretty well without distorting 4:3 material much. I really can't stand the thought of watching TV with gray bars on the sides. Does this set do as good of a job at zooming/stretching as others? Thanks.