Is the box's video output settings set to display the picture via HDMI?
Have you tried other cables with any success?
When I hook my B6000 to my Motarola cable box(model DCT6416 III) the T.V. does not recognize the conection.
The cable I am using is a Philips High Speed HDMI 1.3a
Cox cable brought out two box's and both are not read through HDMI on the T.V.
HELP, just got the T.V. yesterday