I bought an HDMI-out connector for the Rez which didn't work. I replaced it with this one from HTC:
HTC MHL Adapter for Vivid, Rezound, Sensation, EVO 3D - Android Audio & Video - Android and Me
It gets the videos and still on the TV just fine but the sound is coming out of the Rez and not the TV. Isn't it supposed to be able to come out of the TV???