Unplug ALL connections to this set and that includes power to TV and peripherals. Now wait 10 minutes for the HDMI chips to reset then apply the power, connect up as before and re-test.
Another test to be sure the TV is working is to tap any button on the remote that brings up a menu item. If nothing shows, the TV needs repair and it's not a HDMI HDCP issue.
Bob
I have two HDMI connections on the back of my TV one to a blu-ray player and one to a sky+HD box, yesterday i tried to connect my Xbox 360 console to the tv via HDMI i unplugged the connection from the blu-ray player first but no picture then i tried the sky box but still no picture. The problem now it i have plugged the cables back where they were in the blu-ray player and sky+box but there is no display from either like there was before? Please can anyone help?

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