I have a panny 52lcx66 tv that has discrete codes for all but HDMI, apparently. I don't know the hdmi discrete code is not in the harmony database but every other input is. Is there a way to find out it is, or use the hdmi discrete code from another similar panasonic tv that has one listed? I'm new to the remote and am getting frustrated by the software limitations...I just want to tell it what to do directly instead of through effingg wizards.