Make sure the HDMI connection is secure. Madke sure it is on the correct input. Turn on the peripheral first, i.e. dvd, cable box, etc. then turn on the tv. If you still have problems, test whether or not the HDMI cable is bad by trying with another device. If okay, make sure the device or peripheral works with a different type cable. Try to change the inputs from HDMI input 1 to say HDMI input 2, etc. If you can't get HDMI to work just switch it to component. HDMI video is not Superior to component it just affords one to have true 5.1 surround sound broadcast.
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