Originally Posted by PFC5
This is normal to have it brighter at first. It is the initial electrical charge of the plasma cells to fire them up, and then they adjust. No worries with that.
The blank screen when changing HDMI inputs is also normal as part of the HDMI spec is that they are required to use copy protection on the connection and a handshake process is required as part of that. Kind of like the old dial up modems that went through a handshake process to confirm the fastest connection speed that both ends could handle.
Thanks for the reply, I also wanted to let you know i've checked the back of the tv after it's been on for a while and it's barely warm to the touch. It's warm but not burning hot. So I'm guessing that's also a really good sign of everything working correctly.