Dave asks:

> What is the web version of NASA TV?  Is the a URL for streaming video?

There are two sources, one RealPlayer and the others Windows Media. Both are
mentioned on:

     http://www.nasa.gov/ntv/ntvweb.html

However, be sure to get there early. Even though both can generate several
thousand streams simultaneously, they tend to be perpetually clogged. It
would be better that the Endeavour mission was not concurrent with this
briefing. You'd have a better chance of getting on.

But on the second subject: the subject of the briefing, NASA TV's schedule
has this:

60   * LAKES ON MARS SCIENCE BRIEFING       JPL    03/   17:54  03:00 PM
04:00 PM     21:00     00:00
       (3pm to 3:45pm CST)

Wirt Atmar