Can someone explain to me how/why some HDMI ports don't accept a pc input? I've never heard of this. I have the Panasonic TH-50pz80u (which has an incredible picture for $1600!!) that wont allow me to plug in my pc using either of the 2 rear HDMI ports but the one in the front does work (using DVI to HDMI cable). If I plug in my PC and turn it on before the TV is powered on the TV's power light will just blink and the TV will not respond to ANYTHING. Panasonic Customer Service confirmed that it's not designed to allow for a PC connection but couldn't tell me why exactly. I could actually trick the rear HDMI ports into working but only temorarily. If I turned the TV off but left the PC on and then tried to turn the TV back on, the TV would become non-responsive until I unplug it for a minute or two. For all I know that method might actually damage the TV...