NBC removed the classic scrolling text for "vertically stepping" text. That is, text that rises up and stays stationary just long enough for you to glance at it, then moves up as another one takes its place. Plus, with the added high-def eye candy, it works and looks great.
NBC has a lot of video up on Google video and this clip has the ticker in reference at the bottom of the screen. Sure, the clip isn't in HD, but you can still clearly make it out. Here's hoping that other networks make use of the widescreen picture that high definition offers.