You can view the stream at any of these places:
[1] http://www.ustream.tv/nasajpl2[2] http://www.livestream.com/nasatvhd[3] http://www.nasa.gov/multimedia/nasatv/index.html
You can also follow along in parallel with 3D simulation at [4] http://eyes.nasa.gov ([5] here’s a video of what it looks like).
You should also get the official NASA app for Android or iPhone as well as a Zulu (UTC) time app to get yourself on NASA time; Curiosity is schedule to land at 5:31[UTC] on August 6th.
Seriously, keep the children up for this one, even if you have to call them in sick to school the next day.