The most common reason I see CNET videos fail today are ADBLOCKERS. I see you tried the updated Flash and maybe Chrome but do try it without the blockers.
I can not play the video in any article from CNET. No problems with other sites but CNET will not play a video in any browser, I have tried all the major ones. I had this before during the change to HTLM5 but it was fixed for a while and then just stopped working again. Updated Adobe Flash just in case but no help. Can someone please help?