That's a new one for me (using a CD Player with a television).
That said, it might be a simple matter of figuring out which video input on your TV corresponds with the composite (red/white) jacks you've plugged the CD Player into. It's entirely possible those inputs are disabled on your TV if it detects no video source. Usually it would be called Video 1, Video 2, or Composite. Once you enable the correct input and select it, you should be good to go. Press the HOME button, then go to Settings - TV - External inputs and check there.
Do note that you'll probably want to adjust your TVs power save mode if it has one, as it still may want to turn off after a while when it doesn't detect a video signal.