It appears to be only with CNET videos that were done around and since the time of the update. I don't have issues with non-CNET videos.
Since upgrading my iPod Touch to v2.0 I have trouble watching cnet video podcasts. I can watch an episode straight-thru without error, but if I try to fast-forward or stop/restart playback, the audio and video become unsynched and I cannot correct it. I've only had this problem with the last two cnet Live episodes (2hr iPhone release, and the 7/17 episode). I never had this problem before upgrading my iPod.