I assume you have tried other source components (cable box etc) that can output an HD signal? If so, does the TV have any issues showing 720p or 1080i (or p) signals on your TV?
First, try a different video cable.
Another option I would try is to set the player's resolution output to match your TV's native resolution of 720p. Try that and report back.
Lastly, do you have another TV you can test the player on the second set? If not, I would suggest taking the player over to a friend or neighbor's house and test it on their HD set.
As you can see I am trying to elimate which unit is causing the issues.
"Retired" AVS Moderator