I have a Panasonic viera TV And has the hdmi blocked. I can not use the cable box neither the ps3. I tried already resetting TV, I disconnected everything And nothing happened. The Message I get is this "DVI Alert... The hdmi is blocked... your hdtv does not support hdcp... use your yprpb conectors.

Helo please..

Try a different HDMI cable, Does Component or Composite work.
Is anything plugged into DVI?