Hi , I`m JackPerhaps I can help you with this problem , a few questions coming up and please note that it may take a few minutes between replies;
How is the player connected to the tv and are we talking about the built-in dvd that shows no color or everything connected to this tv ?Also ,Can you please give me the tv`s model number written on the back cover ?
What type of cables /connection do you have between the cable box and tv ?Is it HDMI or color coded component cables ?
sorry my bad I mean the dvd and tv
In that case I give this very little hope of a bad cable but unplug the power cords then that hdmi cable and re-insert it securely at both ends .
If that doesn`t do it then you either have a defective dvd player or tv and the way to verify either is to try them on other units , like the dvd on another tv or the tv on another player , cable box, game etc.
No problem and if that answers your questions for now please do not forget to rate by clicking on the star icons at the top, then click on Submit so i get paid for my time helping you .Also note that by all means it will not close this post , you can come back here at any time if you have questions.