High-def will be available on NBC's HD affiliates (including WTMJ-TV in Milwaukee), MSNBC, CNBC, USA and Universal HD.

NBC will use a number of technologies it used in the past to help viewers understand better what they see. Among those:

• The "Still to Come" graphic, which has been used with increasing frequency in the last few Games to alert viewers when key events air.

• In speedskating, the flag of each skater's home country and the skater's name will be superimposed on the ice. It will use a virtual technology seen in auto racing telecasts. It allows the viewer to better see how two skaters compare, which is hard to determine because of staggered starts and intervals. Without the technology, it's hard to tell which racer is ahead and by how much.

• In alpine skiing, a technology called Super-Ski will be used to show the path the leader in an event took compared with the skier currently competing.

• Ski jumping will use the virtual "Line to Beat," which is similar to the virtual first-down line in football telecasts. The "Line to Beat" shows where the leader landed, one of the criteria for judging jumpers.

• "StroMotion" will be used in snowboarding and aerial skiing events to show viewers the path of a trick that cannot be seen as well in real time.