This is fun to watch, and doesn't take up *too* much bandwidth.

This is neat, I've previously only been exposed to NASA TV via various friends' satellite TVs. It has that "high school tv station" feel to it. Meaning, that they are either playing some educational tapes, showing a blank screen, etc.. Although, it tends to get interesting whenever NASA has something going on of public interest. In the past, I've seen everything from just idle shots of the earth spinning coming back live from the shuttle to cycling through various information screens from probes they are in current contact with. For instance, during shuttle flights they usually relay some telemetry data and the comm channel if they do not have other programming..

[ Update: NasaTV hasn't changed that much since the last time I exposure to it. However I don't think I emphasized enough how much random rad stuff they pump over it whenever they have something going on, and its easy to forget how much NASA has going on at any given time. The ISS (and its leak), animations built from Chandra data, the current Mars activity.. As I typed this, I just caught a series of gnuplot graphs fly by plotting out various rover related stuff. This is a nice feed to have chilling out on monitor #2.. ]

Live stream from NASA TV