Please disconnect the set from AC power, then press and hold the power button on the TV itself (not the remote), for 10 seconds. After another minute, plug the set back in and press power once. What that does is drain the residual current from the power supply, and effectively allows the set to reset.
Need help to find out why all HDMI ports died on me. Software is up to date - worked fine but turned on 1 day and could not get Direct tv up - blank screen nothing from receiver. Tried the blue-ray - same result - same with Apple tv nothing at all - other ports such as tv (cable) and USB ports work fine - just the HDMI ports are inoperable. Help pls. Is there way to reboot - I tried turning power off on tv and all components - no help there.