I just ordered it. (25 bucks including shipping). THe only problem is they don't specifically list the HTC Inc as one of the phones it will work on BUT it looks like the exact same cable on the HTC site. Sooo, I'm keeping my fingers crossed and will let you know if it works. If it doesn't I guess I can return it.
http://www.htcdepot.com/htc-tv-out-cable-act100/12A45A5166.htm?gclid=COzT_a6biqICFQP7agod1mQNWA
http://www.htcdepot.com/htc-tv-out-cable-act100/12A45A5166.htm?gclid=COzT_a6biqICFQP7agod1mQNWA