Why won't my HDMI cable work?

Why wont my HDMI wire work with my HD Comcat cable box?

  • I put HDMI cable into the TV and into cable box, but there is no picture. what gives?

  • Answer:

    On the TV, did you switch the "Input" to HDMI 1? Try also to reboot the Comcast box with the HDMI connected to the TV and the TV on.

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