Thanks to the wonders of modern technology, NASA TV has a channel where you can follow what is happening on board the International Space Station. During the crew’s working day you see crewmembers at work inside the US segment of the Station. At other times you can see views outside the ISS. The live streaming video is accompanied by space to ground audio – you can hear the crew talk to the support crews at the various control centres throughout the world.

Broadcasting live with Ustream

Other interesting links:
NASA TV Public Channel
NASA TV schedule