I have two DCT700 set top boxes connected to standard TVs. I also have one HDTV with the appropriate set top box. I am getting no audio or video on any channels with the two DCT700's, but the HDTV works fine on all channels. I've unplugged the power cords of the DCT700's and replugged them after 10-15 seconds. No change. Any suggestions on what's wrong?
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