Accidentally changed settings to HDMI without cable

I can also switch between HDMI and component with my Samsung Plasma TV without any resolution issues. Panasonic Plasma TV’s are a different story. With Panasonic Plasma TV’s, the WD boot up logo will be displayed then the screen will go black and stay black or the TV will display bad horizontal scanning distortion. With the Panasonic Plasma TV’s you need either a composite or component cable to set up the correct HDMI resolution. I have no doubt there are other digital TV’s on the market that need a composite or component cable to set up the correct resolution. Sony bluray players are another example of requiring a composite or component cable to set up the TV HDMI resolution.