For you sports fans out there: the best way to watch live Chinese coverage of the Beijing Olympics online is to use TvAnts. You can download TvAnts for free here:
The Games are being broadcast on CCTV5 , CCTV1, CCTV2, and CCTV7, each channel covering different events. You can find the broadcast schedule (in Chinese) here:
So far I've found that CCTV5 (the Olympics channel) has the best signal quality.